CN102250048A - 2-phenylselenomethyl-2,3-dihydrobenzofuran and preparation and application thereof - Google Patents

2-phenylselenomethyl-2,3-dihydrobenzofuran and preparation and application thereof Download PDF

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CN102250048A
CN102250048A CN201110149874XA CN201110149874A CN102250048A CN 102250048 A CN102250048 A CN 102250048A CN 201110149874X A CN201110149874X A CN 201110149874XA CN 201110149874 A CN201110149874 A CN 201110149874A CN 102250048 A CN102250048 A CN 102250048A
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methyl
phenylseleno
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dihydrobenzofuranes
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CN102250048B (en
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王宇光
刘江
朱勍
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Xuzhou Bochuang Construction Development Group Co ltd
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Zhejiang University of Technology ZJUT
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Abstract

The invention discloses 2-phenylselenomethyl-2,3-dihydrobenzofuran and preparation compounds shown in a formula (I), and a preparation method and application thereof. Phenylselenyl bromide shown as a formula (II) and substituted o-allylphenol shown as a formula (III), which are taken as raw materials, are reacted at the temperature of between 0 and 62DEG C for 0.5 to 5 hours in an organic solvent in the presence of a catalyst to form the 2-phenylselenomethyl-2,3-dihydrobenzofuran and preparation compounds, wherein the organic solvent is ketone with 3 to 6 carbon atoms, tetrahydrofuran, dioxane, nitrile with 2 to 4 carbon atoms or halohydrocarbon with 1 to 2 carbon atoms; and the catalyst is triethylamine, pyridine or tetramethylethylenediamine. The compounds have activity of inhibiting monoamine oxidase, are inhibitor medicines having the activity of obviously inhibiting the monoamine oxidase, and provide research basis for screening new medicines for anti-depression, antiparkinsonism and the like; and the synthesis process is simple and suitable for industrialization.

Description

2-phenylseleno methyl-2,3-Dihydrobenzofuranes and preparation thereof and application
(1) technical field
The present invention relates to a kind of 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds and preparation thereof and application.
(2) background technology
Monoamine oxidase (monoamine oxidase) is the enzyme of catalysis monoamine oxidative deamination.Abbreviation MAO also has to be called to contain the flavine amine oxidase, can make the enzyme of catechu amine neurotransmitter inactivation, can be used as antidepressant and levies medicine.
Existing oxidase inhibitor mainly is some hydrazine class and non-hydrazine class compound, and they suppress monoamine oxidase, show antidepressant effect, comprises Phenelzine, Isocarboxazide, the Ni Lami of hydrazine class, the Tranylcypromine of non-hydrazine class etc.Such medicine reduces the metabolism inactivation of catecholamine by suppressing monoamine oxidase, impels the changes of Catecholamine Content at cynapse position to increase, and produces antidepressant effect, and hypotensive effect is arranged.But this class medicine remove to suppress monoamine oxidase, and the drug metabolism enzyme of liver is also had restraining effect, and side effect is more, can produce central excitation, lures phrenoplegia into, and hepatotoxicity is arranged, and causes postural hypotension.Therefore be necessary to screen new oxidase inhibitor, to substitute existing antidepressant drug.
Benzofuran compounds is one of constituent common in the natural product; has multiple important physical activity; for example; exciting estrogenic receptor subtype, antagonism pth receptor and H3 acceptor, inhibition of histone deacetylase or the like; they are preventing and treating Parkinson's disease; osteoporosis, alzheimer's disease, aspects such as irregular pulse and tumour play significant effect.People set up the library of molecules of this compounds in searching all the time, thereby systematically carry out bioactive screening.Synthetic 2, the method for 3-Dihydrobenzofuranes compounds has a lot, for example, Chemistry of Heterocyclic Compounds, 2010,46 (2), 158-169., Org.Lett., 2010,12 (15), 3498-3501., Journal of Organic Chemistry, 2009,74 (7), 2850-2853.
But the most reactions steps of these methods is many, and productive rate is low, though the simple productive rate of some method condition is lower.The present invention is by phenyl selenium bromine and o-allyl compounds generation intramolecularly selenium electrophilic addition ring closure reaction, single step reaction has prepared the new 2-phenylseleno methyl 2 of a class with high yield, 3-Dihydrobenzofuranes compounds, this compounds is a kind of inhibitor medicaments with remarkable inhibition activity of monoamine oxidase, for new medicament screens such as antidepressant, anti-Parkinson provide the research basis.
(3) summary of the invention
The object of the invention provides a kind of 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds and preparation method thereof, and the application of this compounds in monoamine oxidase (MAO) inhibitor medicaments, this compounds has significant inhibitory effect to monoamine oxidase, such compound synthesis technology is simple, is easy to industrialization.
The technical solution used in the present invention is:
2-phenylseleno methyl 2 shown in a kind of formula (I), 3-Dihydrobenzofuranes compounds:
Figure BDA0000066366340000021
In the formula (I):
R 1, R 2, R 3, R 4Independent separately is alkyl, benzoyl or the substituted benzoyl of H, hydroxyl, halogen, nitro, C1~C3, the alkoxyl group of C1~C2, and the substituting group of described substituted benzoyl is: the alkyl of halogen, nitro, C1~C3, the alkoxyl group of C1~C2; Described R 1, R 2, R 3, R 4Be not H simultaneously, and R 1, R 2, R 3, R 4When one of them was alkyl, other three was not H simultaneously; Perhaps described R 3, R 4Connect into phenyl ring.
Preferably, described R 1, R 2, R 3, R 4Independent separately is H, hydroxyl, F, Cl, Br, I, nitro, methyl, methoxyl group or benzoyl.
It is one of following that described 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds are preferably:
Figure BDA0000066366340000031
(I-7)。
A kind of preparation 2-phenylseleno of the present invention methyl 2, the method of 3-Dihydrobenzofuranes compounds, described method is: with the replacement o-allyl phenol shown in phenyl selenium bromine shown in the formula (II) and the formula (III) is raw material, under the effect of catalyzer, in organic solvent, under nitrogen atmosphere, react 0.5~5h under 0~62 ℃ of condition, TLC follows the tracks of reaction, reaction finishes the aftertreatment of afterreaction liquid and makes described 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds; Described organic solvent is one of following: C3~C6 ketone, tetrahydrofuran (THF), dioxane, C2~C4 nitrile or C1~C2 halohydrocarbon; Described catalyzer is one of following: triethylamine, pyridine or Tetramethyl Ethylene Diamine.
It is one of following that described organic solvent is preferably: acetone, ether, tetrahydrofuran (THF), methylene dichloride, trichloromethane, chloroform, 1,4-dioxane or acetonitrile.
Figure BDA0000066366340000032
R among formula (I), (III) 1, R 2, R 3, R 4Independent separately is alkyl, benzoyl or the substituted benzoyl of H, hydroxyl, halogen, nitro, C1~C3, the alkoxyl group of C1~C2, and the substituting group of described substituted benzoyl is: the alkyl of halogen, nitro, C1~C3, the alkoxyl group of C1~C2, and R 1, R 2, R 3, R 4When one of them was alkyl, other three was not H simultaneously; Perhaps described R 3, R 4Connect into phenyl ring.
Further, 2-phenylseleno methyl 2, among the preparation method of 3-Dihydrobenzofuranes compounds, the feed intake ratio of amount of substance of replacement o-allyl phenol shown in phenyl selenium bromine shown in the described formula (II) and the formula (III) is 0.80~1.20: 1, and the feed intake ratio of amount of substance of the phenyl selenium bromine shown in the formula (II) and catalyzer is 1: 1~2.
Further, 2-phenylseleno methyl 2, among the preparation method of 3-Dihydrobenzofuranes compounds, described volume of organic solvent consumption is counted 1.5~200mL/g. with the compound quality shown in the formula (II)
Described 2-phenylseleno methyl 2, among the preparation method of 3-Dihydrobenzofuranes compounds, described post-treating method is: after reaction finishes, reaction solution extracts with methylene dichloride or saturated aqueous common salt, the organic phase washing, use anhydrous magnesium sulfate drying again, concentrate, get crude product, be that eluent carries out column chromatography or comes purification with 100: 1 sherwood oil of volume ratio and methylene dichloride mixed solution recrystallization with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution again, get described 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds.
Described temperature of reaction is preferably 25~62 ℃, preferred reaction 0.5~5h.
Preparation 2-phenylseleno methyl 2 of the present invention, the reaction formula of 3-Dihydrobenzofuranes compounds is:
Figure BDA0000066366340000041
A kind of 2-phenylseleno methyl 2 of the present invention, the application of 3-Dihydrobenzofuranes compounds in activity of monoamine oxidase suppresses.
Compared with prior art, beneficial effect of the present invention is mainly reflected in: (1) the present invention is by phenyl selenium bromine and o-allyl compounds generation intramolecularly selenium electrophilic addition ring closure reaction, one step prepared the new 2-phenylseleno methyl 2 of a class, 3-Dihydrobenzofuranes compounds with high yield; (2) the invention provides a kind of new 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds; (3) this compounds is a kind of inhibitor medicaments with remarkable inhibition activity of monoamine oxidase, for new medicament screens such as antidepressant, anti-Parkinson provide the research basis; (4) compound of the present invention, synthesis technique is simple, and the yield height is easy to industrialization.
(4) embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1:5-methoxyl group-2-phenylseleno methyl-2, the preparation of 3-Dihydrobenzofuranes (I-1)
Reaction formula is as follows:
Figure BDA0000066366340000051
Under nitrogen atmosphere, 0.328g (2.0mmol) 2-allyl group-4-methoxyphenol (III-1) is dissolved in the 20mL methylene dichloride, add 0.472g (2.0mmol) phenyl selenium bromine (II), add 0.237g (3.0mmol) pyridine at last, 25 ℃ were reacted 2.0 hours, TLC follows the tracks of reaction, 2-allyl group-4-methoxyphenol (III-1) point disappears, react completely, use the 20mL dichloromethane extraction, organic phase washing 20mL * 3 are used anhydrous magnesium sulfate drying again, concentrate, get crude product (I-1), cross chromatography column (is elutriant with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution) purifying, get elaboration 5-methoxyl group-2-phenylseleno methyl-2,3-Dihydrobenzofuranes (I-1) 0.606g, productive rate is 95.0%.
1H-NMR(CDCl 3):δ7.17-7.10(m,5H),6.95-6.94(d,1H),6.07-6.06(d,1H),5.93-5.89(m,1H),5.03-5.00(m,2H),3.65(s,OCH 3),3.35-3.33(d,2H);? 13C-NMR(CDCl 3):δ153.1,148.7,136.1,130.8,129.8,129.4,127.3,126.8,119.2,119.0,116.1,114.5,55.8,35.2.
Embodiment 2:5-chloro-2-phenylseleno methyl-2, the preparation of 3-Dihydrobenzofuranes (I-2)
Reaction formula is as follows:
Figure BDA0000066366340000061
Under nitrogen atmosphere, 0.337g (2.0mmol) 2-allyl group-4-chlorophenol (III-2) is dissolved in the 25mL acetone, add 0.481g (2.04mmol) phenyl selenium bromine (II), add 0.42mL (3.0mmol) triethylamine at last.30 ℃ were reacted 1.0 hours, and TLC follows the tracks of reaction, and raw material point (III-2) disappears, react completely, use the 40mL dichloromethane extraction, organic phase washing 20mL * 3 are used anhydrous magnesium sulfate drying again, concentrate, cross post (is elutriant with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution) purifying, get light yellow solid 5-chloro-2-phenylseleno methyl-2,3-Dihydrobenzofuranes (I-2) 0.602g, 47.7~50.3 ℃ of fusing points, productive rate are 93%.
1H-NMR(CDCl 3):δ6.66-7.59(m,8H),4.92-4.96(m,1H),3.31-3.33(m,2H),2.98-3.14(m,2H),2.29(s,CH 3); 13C-NMR(CDCl 3):δ157.0,133.0,129.9,129.4,129.2,128.4,127.2,126.1,125.6,109.0,81.9,35.5,32.7,20.7;IRv max(cm -1):2931,861,604,1491,1475,1347,1199,944,805,736,688.
Embodiment 3:5-fluoro-2-phenylseleno methyl-2, the preparation of 3-Dihydrobenzofuranes (I-3)
Reaction formula is as follows:
Figure BDA0000066366340000062
Under nitrogen atmosphere, 0.304g (2.0mmol) 2-allyl group-4-fluorophenol (III-3) is dissolved in 25mL 1, in the 4-dioxane, add 0.481g (2.04mmol) phenyl selenium bromine (II), add 0.42mL (3.0mmol) triethylamine at last, 25 ℃ were reacted 0.5 hour, TLC follows the tracks of reaction, and raw material point (III-3) disappears, and reacts completely, reaction solution 40mL dichloromethane extraction, organic phase washing 30mL * 3 are used anhydrous magnesium sulfate drying again, concentrate, cross post (is elutriant with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution) purifying, get yellow solid 0.548g, 40~42. ℃ of fusing points, i.e. 5-fluoro-2-phenylseleno methyl-2,3-Dihydrobenzofuranes (I-3), productive rate are 89.2%.
1H-NMR(CDCl 3):δ6.22-7.15(m,8H),5.82-5.88(m,1H),4.97-5.01(m,2H),3.29-3.30(m,2H);IRv max(cm -1):3419,3074,2914,1639,1578,1455,1328,1205,1172,769,735,688.
Embodiment 4:4,6-two chloro-2-phenylseleno methyl-2, the preparation of 3-Dihydrobenzofuranes (I-4)
Reaction formula is as follows:
Figure BDA0000066366340000071
Under nitrogen atmosphere, with 0.406g (2.0mmol) 2-allyl group-3,5-chlorophenesic acid (III-4) is dissolved in the 20mL acetonitrile, add 0.463g (1.96mmol) phenyl selenium bromine (II), add 25 ℃ of reactions of 0.56mL (4.0mmol) triethylamine 1.0 hours at last, TLC follows the tracks of reaction, raw material point (III-4) disappears, and reacts completely reaction solution 50mL dichloromethane extraction, organic phase washing 30mL * 3, use anhydrous magnesium sulfate drying again, concentrate, cross post (is elutriant with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution) purifying, get brown solid 0.637g, 50.8~51.8 ℃ of fusing points, promptly 4,6-two chloro-2-phenylseleno methyl-2,3-Dihydrobenzofuranes (I-4), productive rate are 89.0%.
1H-NMR(CDCl 3):δ7.01-7.57(m,7H),5.04-5.07(m,1H),3.36-3.42(m,2H),3.08-3.13(m,2H); 13C-NMR(CDCl 3):δ154.2,133.3,129.3,128.7,128.0,127.6,126.3,125.5,123.5,115.3,83.5,35.7,32.1,IRvmax(cm -1):3450,3070,2969,1582,1462,1021,987,852,691,608.
Embodiment 5:2-phenylseleno methyl-2, the preparation of 3-dihydro (naphthalene [1,2] is also) furans (I-5)
Reaction formula is as follows:
Figure BDA0000066366340000081
Under nitrogen atmosphere, 0.368g (2.0mmol) 2-allyl group naphthalene-1-phenol (III-5) is dissolved in the 20mL tetrahydrofuran (THF), add 0.472g (2.0mmol) phenyl selenium bromine (II), add 0.232g (2.0mmol) Tetramethyl Ethylene Diamine at last, 50 ℃ were reacted 1.0 hours, and TLC follows the tracks of reaction, raw material point (III-5) disappears, react completely reaction solution 40mL dichloromethane extraction, organic phase washing 30mL * 3, use anhydrous magnesium sulfate drying again, concentrate, cross post (is elutriant with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution) purifying, get brown solid 0.586g, it is 2-phenylseleno methyl-2,3-dihydro (naphthalene [1,2] also) furans (I-5), productive rate is 86.5%.
1H-NMR(CDCl 3):δ7.91-7.79(m,2H),7.61-7.59(m,2H),7.44-7.38(m,3H),7.31-7.26(m,4H),5.23-5.16(m,1H),3.586-3.43(m,2H),3.25-3.16(m,2H); 13C-NMR(CDCl 3):δ154.5,133.9,133.3,129.4,129.1,127.8,127.3,125.6,125.3,122.8,121.4,120.5,120.3,119.1,82.8,36.3,32.9.
Embodiment 6:2-phenylseleno methyl-6-hydroxyl-7-methyl-2, the preparation of 3-Dihydrobenzofuranes (I-6)
Reaction formula is as follows:
Figure BDA0000066366340000082
Under nitrogen atmosphere, with 0.328g (2.0mmol) 4-allyl group-2-methyl isophthalic acid, 3-dihydroxy-benzene (III-6) is dissolved in 25mL 1, in the 4-dioxane, add 0.481g (2.04mmol) phenyl selenium bromine (II), add 0.232g (2.0mmol) Tetramethyl Ethylene Diamine at last, 25 ℃ were reacted 0.5 hour, the TLC detection reaction is complete, uses dichloromethane extraction, and organic phase washes 30mL * 3 with water, the organic phase anhydrous magnesium sulfate drying, concentrate, cross post (eluent: sherwood oil and ethyl acetate volume ratio are 1: 30.) and get 2-phenylseleno methyl-6-hydroxyl-7-methyl-2,3-Dihydrobenzofuranes (I-6) 0.563 gram productive rate is 88.2%.
1H-NMR(CDCl 3):δ7.57-7.55(m,2H),7.27-7.26(m,3H),6.81-6.79(d,1H),6.30-6.28(d,1H),5.33(s,1H),4.98-4.95(m,1H),3.36-3.27(m,2H),3.12-3.07(m,1H),2.99-2.94(m,1H),2.05(s,3H); 13C-NMR(CDCl 3):δ158.81,154.14,133.00,129.48,129.11,127.19,121.65,117.34,106.97,106.61,82.62,35.43,32.84,8.33.
Embodiment 7:2-phenylseleno methyl-4-hydroxyl-5,7-dibenzoyl-2, the preparation of 3-Dihydrobenzofuranes (I-7)
Reaction formula is as follows:
Figure BDA0000066366340000091
Under nitrogen atmosphere; 7.16g (20mmol) compound (III-5) is dissolved in the 100mL trichloromethane; add 4.96g (21mmol) phenyl selenium bromine (II); 2.80mL (20mmol) the triethylamine back flow reaction is 5 hours; the TLC detection reaction is complete; add 100mL saturated common salt water stratification; organic phase washes 80mL * 3 with water; add anhydrous magnesium sulfate drying, concentrate, with sherwood oil and methylene dichloride (100: 1) recrystallization; get white solid 2-phenylseleno methyl-4-hydroxyl-5; 7-dibenzoyl-2,3-Dihydrobenzofuranes (I-10) 9.234g, productive rate is 90%.
1H-NMR(CDCl 3):δ12.70(s,1H),7.78(s,1H),7.66-7.64(m,2H),7.54-7.534(m,2H),7.44-7.414(m,4H),7.36-7.30(m,4H),7.15-7.14(m,3H),5.06-5.03(m,1H),3.34-3.33(m,1H),3.21-3.17(m,1H),3.05-2.96(m,2H);? 13C-NMR(CDCl 3):δ200.3,192.5,165.1,163.0,139.1,138.0,137.7,133.4,132.6,132.0,129.6,129.3,129.0,128.7,128.5,128.1,127.6,114.3,114.1,114.2,114.0,85.4,32.3,31.3;IRv max(cm -1):3062,2977,1623,1446,1261,1135,1035,778,743,700,618.
The test of embodiment 8 monoamine oxidase inhibitory activities
(1) sample preparation
The compound (I-1)~(I-7) of embodiment 1~7 preparation is dissolved in the dimethyl sulfoxide (DMSO) (DMSO), is made into 5,15,25,35,45,60,75,90,105 respectively, the sample liquid of 120mmol/L concentration gradient, be designated as sample 1~sample 7.
(2) 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds suppresses the active testing detection method to monoamine oxidase-A
Sample 1~the sample 7 that in 7 EP pipes (Eppendorf tube) that 386 μ L borate buffers (pH=8.4) are housed, adds 4 μ L monoamine oxidase-A (MAO-A) and the preparation of 4 μ L steps (1) respectively, mix, again mixture is reacted bovine serum albumin (BSA) that 2h. adds the probe 7-shown in the 2 μ L formulas (IV) (3-amino propoxy-)-4-methylcoumarin (10mmol/ml) and 4 μ L then respectively once more in 38 ℃ of water-baths in above-mentioned 7 EP pipes, and place it in and continue to react 2h in 38 ℃ of water-baths.With the enzyme work of the enzyme of inhibiting not is contrast, promptly in the EP pipe that 390 μ L borate buffers (pH=8.4) are housed, add 4 μ L monoamine oxidase-A (MAO-A), react 2h in 38 ℃ of water-baths, the BSA that adds 2 μ L probes (10mmol/ml) and 4 μ L more equally also reacts 2h in 38 ℃ of water-baths.
(IV)
Taking out 100 μ L at last in above-mentioned each EP pipe (Eppendorf tube) adds in 96 orifice plates also with global function spectrophotofluorometer (λ ex/ λ em=365/460nm) (spectraMax M, U.S. molecule instrument company) test sample 1~sample 7 and control sample.IC according to the fluorescent value calculation sample of being surveyed 1~7 50, compound (I-1)~(I-7) sees Table 1 to the active test result that suppresses of monoamine oxidase-A.
The inhibition effect of compound half-inhibition concentration (IC 50) represent.IC 50Be meant that " reaction " is suppressed the concentration of a half inhibitor, it is strong more that compound suppresses ability, and this numerical value is low more.
IC 50Can calculate in order to following method:
1) detects and calculates average fluorescent strength (F only enzyme-added and the probe damping fluid M);
2) calculating contains the fluorescence intensity (wanting the background correction value) of each component enzyme of different concns gradient inhibitor;
3) do the straight-line regression of relation between the concentration (C) of inhibitor and the fluorescence intensity (F) according to the fluorescence intensity of each component enzyme of different concns gradient inhibitor, set up and obtain equation: F=aC+b (determine equation coefficient a and cut the b that crouches) by regression straight line;
4), ask F=1/2F according to equation MUnder the inhibitor concentration of correspondence, can obtain inhibiting rate and be 50% o'clock inhibitor concentration, be IC 50
(3) 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds suppresses active testing to monoamine oxidase-B
Change MAO-A into MAO-B, other operate same step (2), the results are shown in Table 1.
Table 1 2-phenylseleno methyl-2,3-Dihydrobenzofuranes compounds to monoamine oxidase inhibitory activity
Compound MAO-A?IC50(μM) MAO-B?IC50(μM)
I-1 683.80 83.56
I-2 262.46 492.53
I-3 241.02 567.07
I-4 438.45 *
[0082]?
I-5 485.34 906.75
I-6 68.50 476.35
I-7 * 200.10
* expression does not suppress active or suppresses activity to be far longer than 1500 μ M.
As can be seen from Table 1, compound (I-1), (I-2), (I-3), (I-4), (I-5), (I-6) have the activity of inhibition to monoamine oxidase A, and wherein compound (I-2), (I-3), (I-6) have stronger inhibition activity; Compound (I-1), (I-2), (I-3), (I-5), (I-6), (I-7), monoamine oxidase-B had suppress active, wherein compound (I-1), (I-7) have stronger inhibition activity.

Claims (10)

1. 2-phenylseleno methyl 2 shown in the formula (I), 3-Dihydrobenzofuranes compounds:
Figure FDA0000066366330000011
In the formula (I): R 1, R 2, R 3, R 4Independent separately is alkyl, benzoyl or the substituted benzoyl of H, hydroxyl, halogen, nitro, C1~C3, the alkoxyl group of C1~C2, and the substituting group of described substituted benzoyl is: the alkyl of halogen, nitro, C1~C3, the alkoxyl group of C1~C2, described R 1, R 2, R 3, R 4Be not H simultaneously, and R 1, R 2, R 3, R 4When one of them was alkyl, other three was not H simultaneously; Perhaps described R 3, R 4Connect into phenyl ring.
2. 2-phenylseleno methyl 2 as claimed in claim 1,3-Dihydrobenzofuranes compounds is characterized in that described R 1, R 2, R 3, R 4Independent separately is H, hydroxyl, F, Cl, Br, I, nitro, methyl, methoxyl group or benzoyl.
3. 2-phenylseleno methyl 2 as claimed in claim 1,3-Dihydrobenzofuranes compounds is characterized in that described compound is one of following:
Figure FDA0000066366330000012
Figure FDA0000066366330000021
4. one kind prepares 2-phenylseleno methyl 2 as claimed in claim 1, the method of 3-Dihydrobenzofuranes compounds, it is characterized in that described method is: with the replacement o-allyl phenol shown in phenyl selenium bromine shown in the formula (II) and the formula (III) is raw material, under the effect of catalyzer, in organic solvent, under nitrogen atmosphere, react 0.5~5h under 0~62 ℃ of condition, reaction finishes the aftertreatment of afterreaction liquid and makes described 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds; Described organic solvent is one of following: C3~C6 ketone, tetrahydrofuran (THF), dioxane, C2~C4 nitrile or C1~C2 halohydrocarbon; Described catalyzer is triethylamine, pyridine or Tetramethyl Ethylene Diamine.
5. 2-phenylseleno methyl 2 as claimed in claim 4, the preparation method of 3-Dihydrobenzofuranes compounds, it is characterized in that described organic solvent is one of following: acetone, ether, tetrahydrofuran (THF), methylene dichloride, trichloromethane, chloroform, 1,4-dioxane or acetonitrile.
Figure FDA0000066366330000022
R among formula (I), (III) 1, R 2, R 3, R 4Independent separately is alkyl, benzoyl or the substituted benzoyl of H, hydroxyl, halogen, nitro, C1~C3, the alkoxyl group of C1~C2, and the substituting group of described substituted benzoyl is: the alkyl of halogen, nitro, C1~C3, the alkoxyl group of C1~C2, described R 1, R 2, R 3, R 4Be not H simultaneously, and R 1, R 2, R 3, R 4When one of them was alkyl, other three was not H simultaneously; Perhaps described R 3, R 4Connect into phenyl ring.
6. 2-phenylseleno methyl 2 as claimed in claim 4, the preparation method of 3-Dihydrobenzofuranes compounds, it is characterized in that the feed intake ratio of amount of substance of the replacement o-allyl phenol shown in phenyl selenium bromine shown in the described formula (II) and the formula (III) is 0.80~1.20: 1,, the feed intake ratio of amount of substance of the phenyl selenium bromine shown in the formula (II) and catalyzer is 1: 1~2.
7. 2-phenylseleno methyl 2 as claimed in claim 4, the preparation method of 3-Dihydrobenzofuranes compounds is characterized in that described volume of organic solvent consumption counts 1.5~200mL/g with the compound quality shown in the formula (II).
8. 2-phenylseleno methyl 2 as claimed in claim 4, the preparation method of 3-Dihydrobenzofuranes compounds, it is characterized in that described post-treating method is: after reaction finishes, reaction solution extracts with methylene dichloride or saturated aqueous common salt, the organic phase washing, use anhydrous magnesium sulfate drying again, concentrate, get crude product, be that eluent carries out column chromatography or comes purification with 100: 1 sherwood oil of volume ratio and methylene dichloride mixed solution recrystallization crude product with 30: 1 sherwood oil of volume ratio and ethyl acetate mixed solution again, make described 2-phenylseleno methyl 2,3-Dihydrobenzofuranes compounds.
9. 2-phenylseleno methyl 2 as claimed in claim 1, the application of 3-Dihydrobenzofuranes compounds in activity of monoamine oxidase suppresses.
10. 2-phenylseleno methyl 2 as claimed in claim 1, the application of 3-Dihydrobenzofuranes compounds in activity of monoamine oxidase suppresses, described compound is (I-1), (I-2), (I-3), (I-6), (I-7).
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CN104016938A (en) * 2014-05-28 2014-09-03 浙江工业大学 Benzeneselenenyl-containing oxadiazole compounds, preparation and application thereof
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CN104016938B (en) * 2014-05-28 2016-08-17 浙江工业大学 A kind of diazoles compound containing phenylseleno and preparation and application thereof
CN104016931A (en) * 2014-05-29 2014-09-03 浙江工业大学 Benzeneselenenyl quinoxaline compound and preparation and application thereof
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CN114478449A (en) * 2022-01-19 2022-05-13 江苏海洋大学 Polysubstituted selenium-containing dihydroisobenzofuran derivative and preparation method thereof
CN114478449B (en) * 2022-01-19 2023-10-27 江苏海洋大学 Polysubstituted selenium-containing dihydroisobenzofuran derivative and preparation method thereof

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