【结 构 式】 |
【分子编号】48735 【品名】4-Cyano-4'-hydroxybiphenyl; 4-Hydroxy-4'-cyanodiphenyl; 4'-Cyano-4-biphenylol; 4'-Hydroxy-4-biphenylcarbonitrile 【CA登记号】19812-93-2 |
【 分 子 式 】C13H9NO 【 分 子 量 】195.2206 【元素组成】C 79.98% H 4.65% N 7.17% O 8.2% |
合成路线1
该中间体在本合成路线中的序号:(VIII)The condensation of 5(S)-(trityloxymethyl)-2-pyrrolidinone (I) with benzyl chloroformate (II) and BuLi in THF gives the carbamate (III), which is alkylated with tert-butyl 2-chloroacetate (IV) and LHMDS in THF to yield 2-[1-(benzyloxycarbonyl)-2-oxo-5(S)-(trityloxymethyl)pyrrolidin-2(S)-yl]acetic acid tert-butyl ester (V). The hydrogenation of (V) with H2 over Pd/C in hot tert-butanol affords 2-[5(S)-(hydroxymethyl)-2-oxopyrrolidin-2(S)-yl]acetic acid tert-butyl ester (VI), which is treated with MsCl and TEA in dichloromethane to provide the methanesulfonate (VII). The condensation of (VII) with 4'-hydroxybiphenyl-4-carbonitrile (VIII) by means of potassium tert-butoxide in DMF gives the adduct (IX), which by treatment with HCl in methanol and with ammonia in the same solvent yields 2-[5(S)-(4'-amidinobiphenyl-4-yloxymethyl)-2-oxopyrrolidin-3(S)-yl]acetic acid methyl ester (X). Finally, this compound is hydrolyzed with NaOH in methanol to afford the target acetic acid derivative.
【1】 Himmelsbach, F.; Austel, V.; Pieper, H.; Eisert, W.; Müller, T.; Weisenberger, J.; Linz, G.; Krüger, G. (Dr. Karl Thomae GmbH); Cyclic imino derivs., process for their preparation and drugs containing them. DE 4035961; EP 0483667; JP 1992264068; US 5591769 . |
【2】 Himmelsbach, F.; Austel, V.; Pieper, H.; Linz, G.; Wisenberger, J.; Muller, T. (Dr. Karl Thomae GmbH); Cyclic imino derivs., medicaments containing these cpds. and processes for the production thereof. DE 4213919; EP 0567966; JP 1994073001 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(I) | 48730 | (S)-(+)-5-(Trityloxymethyl)-2-pyrrolidinone | C24H23NO2 | 详情 | 详情 | |
(II) | 10101 | Benzyloxycarbonyl chloride; Benzyl chloroformate; 1-[[(Chlorocarbonyl)oxy]methyl]benzene | 501-53-1 | C8H7ClO2 | 详情 | 详情 |
(III) | 48731 | benzyl (5S)-2-oxo-5-[(trityloxy)methyl]-1-pyrrolidinecarboxylate | C32H29NO4 | 详情 | 详情 | |
(IV) | 40664 | tert-butyl 2-chloroacetate | 107-59-5 | C6H11ClO2 | 详情 | 详情 |
(V) | 48732 | benzyl (3S,5S)-3-[2-(tert-butoxy)-2-oxoethyl]-2-oxo-5-[(trityloxy)methyl]-1-pyrrolidinecarboxylate | C38H39NO6 | 详情 | 详情 | |
(VI) | 48733 | tert-butyl 2-[(3S,5S)-5-(hydroxymethyl)-2-oxopyrrolidinyl]acetate | C11H19NO4 | 详情 | 详情 | |
(VII) | 48734 | tert-butyl 2-((3S,5S)-5-[[(methylsulfonyl)oxy]methyl]-2-oxopyrrolidinyl)acetate | C12H21NO6S | 详情 | 详情 | |
(VIII) | 48735 | 4-Cyano-4'-hydroxybiphenyl; 4-Hydroxy-4'-cyanodiphenyl; 4'-Cyano-4-biphenylol; 4'-Hydroxy-4-biphenylcarbonitrile | 19812-93-2 | C13H9NO | 详情 | 详情 |
(IX) | 48736 | tert-butyl 2-((3S,5S)-5-[[(4'-cyano[1,1'-biphenyl]-4-yl)oxy]methyl]-2-oxopyrrolidinyl)acetate | C24H26N2O4 | 详情 | 详情 | |
(X) | 48737 | methyl 2-[(3S,5S)-5-[([4'-[amino(imino)methyl][1,1'-biphenyl]-4-yl]oxy)methyl]-2-oxopyrrolidinyl]acetate | C21H23N3O4 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VIII)The condensation of 5(S)-(trityloxymethyl)-2-pyrrolidinone (I) with benzyl chloroformate (II) and BuLi in THF gives the carbamate (III), which is alkylated with tert-butyl 2-chloroacetate (IV) and LHMDS in THF to yield 2-[1-(benzyloxycarbonyl)-2-oxo-5(S)-(trityloxymethyl)pyrrolidin-2(S)-yl]acetic acid tert-butyl ester (V). The hydrogenation of (V) with H2 over Pd/C in hot tert-butanol affords 2-[5(S)-(hydroxymethyl)-2-oxopyrrolidin-2(S)-yl]acetic acid tert-butyl ester (VI), which is treated with MsCl and TEA in dichloromethane to provide the methanesulfonate (VII). The condensation of (VII) with 4'-hydroxybiphenyl-4-carbonitrile (VIII) by means of potassium tert-butoxide in DMF gives the adduct (IX), which by treatment with HCl in methanol, and with ammonia in the same solvent yields 2-[5(S)-(4'-amidinobiphenyl-4-yloxymethyl)-2-oxopyrrolidin-3(S)-yl]acetic acid methyl ester (X). Finally, this compound is condensed with methyl chloroformate (XI) by means of NaOH in dichloromethane to afford the target compound.
【1】 Himmelsbach, F.; Austel, V.; Pieper, H.; Eisert, W.; Müller, T.; Weisenberger, J.; Linz, G.; Krüger, G. (Dr. Karl Thomae GmbH); Cyclic imino derivs., process for their preparation and drugs containing them. DE 4035961; EP 0483667; JP 1992264068; US 5591769 . |
【2】 Himmelsbach, F.; Austel, V.; Pieper, H.; Linz, G.; Wisenberger, J.; Muller, T. (Dr. Karl Thomae GmbH); Cyclic imino derivs., medicaments containing these cpds. and processes for the production thereof. DE 4213919; EP 0567966; JP 1994073001 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(I) | 48730 | (S)-(+)-5-(Trityloxymethyl)-2-pyrrolidinone | C24H23NO2 | 详情 | 详情 | |
(II) | 10101 | Benzyloxycarbonyl chloride; Benzyl chloroformate; 1-[[(Chlorocarbonyl)oxy]methyl]benzene | 501-53-1 | C8H7ClO2 | 详情 | 详情 |
(III) | 48731 | benzyl (5S)-2-oxo-5-[(trityloxy)methyl]-1-pyrrolidinecarboxylate | C32H29NO4 | 详情 | 详情 | |
(IV) | 40664 | tert-butyl 2-chloroacetate | 107-59-5 | C6H11ClO2 | 详情 | 详情 |
(V) | 48732 | benzyl (3S,5S)-3-[2-(tert-butoxy)-2-oxoethyl]-2-oxo-5-[(trityloxy)methyl]-1-pyrrolidinecarboxylate | C38H39NO6 | 详情 | 详情 | |
(VI) | 48733 | tert-butyl 2-[(3S,5S)-5-(hydroxymethyl)-2-oxopyrrolidinyl]acetate | C11H19NO4 | 详情 | 详情 | |
(VII) | 48734 | tert-butyl 2-((3S,5S)-5-[[(methylsulfonyl)oxy]methyl]-2-oxopyrrolidinyl)acetate | C12H21NO6S | 详情 | 详情 | |
(VIII) | 48735 | 4-Cyano-4'-hydroxybiphenyl; 4-Hydroxy-4'-cyanodiphenyl; 4'-Cyano-4-biphenylol; 4'-Hydroxy-4-biphenylcarbonitrile | 19812-93-2 | C13H9NO | 详情 | 详情 |
(IX) | 48736 | tert-butyl 2-((3S,5S)-5-[[(4'-cyano[1,1'-biphenyl]-4-yl)oxy]methyl]-2-oxopyrrolidinyl)acetate | C24H26N2O4 | 详情 | 详情 | |
(X) | 48737 | methyl 2-[(3S,5S)-5-[([4'-[amino(imino)methyl][1,1'-biphenyl]-4-yl]oxy)methyl]-2-oxopyrrolidinyl]acetate | C21H23N3O4 | 详情 | 详情 | |
(XI) | 10257 | methyl 2-chloroacetate; methyl chloroacetate | 96-34-4 | C3H5ClO2 | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号:(I)Alkylation of 4-cyano-4'-hydroxybiphenyl (I) with 1-bromo-3-chloropropane (II) yields the chloropropyl ether (III). This is then condensed with the mono-protected homopiperazine (IV) to furnish (V). Removal of the N-Boc group of (V) to afford amine (VI) is then accomplished by treatment with trifluoroacetic acid in CH2Cl2. Amine (VI) is subsequently coupled with N-Boc-D-thiazolylalanine (VII) in the presence of EDC/DMAP producing amide (VIII). (1,2)
【1】 Curtis, M.P.; Dwight, W.; Fox, G.B.; Esbenshade, T.A.; Pan, J-B.; Bennani, Y.L.; Hancock, A.A.; Faghih, R.; A-320436: Potent human non-imidazole histamine H3 receptor antagonist. 225th ACS Natl Meet (March 23 2003, New Orleans) 2003, Abst MEDI 240. |
【2】 Black, L.A.; Faghih, R.; Bennani, Y.L.; Liu, H.; Zhang, H.Q.; Dwight, W.J.; Gentles, R.G.; Phelan, K.M.; Vasudevan, A. (Abbott Laboratories Inc.); Cyclic and bicyclic diamino histamine-3 receptor antagonists. WO 0166534 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(I) | 48735 | 4-Cyano-4'-hydroxybiphenyl; 4-Hydroxy-4'-cyanodiphenyl; 4'-Cyano-4-biphenylol; 4'-Hydroxy-4-biphenylcarbonitrile | 19812-93-2 | C13H9NO | 详情 | 详情 |
(II) | 10358 | 1-Bromo-3-chloropropane | 109-70-6 | C3H6BrCl | 详情 | 详情 |
(III) | 57817 | 4'-(3-chloropropoxy)[1,1'-biphenyl]-4-carbonitrile | C16H14ClNO | 详情 | 详情 | |
(IV) | 54079 | tert-Butyl 1-homopiperazine carboxylate | n/a | C10H20N2O2 | 详情 | 详情 |
(V) | 64053 | 1,1-dimethylethyl 4-{3-[(4'-cyano[1,1'-biphenyl]-4-yl)oxy]propyl}-1,4-diazepane-1-carboxylate | C26H33N3O3 | 详情 | 详情 | |
(VI) | 64054 | 4'-{[3-(1,4-diazepan-1-yl)propyl]oxy}[1,1'-biphenyl]-4-carbonitrile | C21H25N3O | 详情 | 详情 | |
(VII) | 12882 | (2S)-2-[(tert-Butoxycarbonyl)amino]-3-(1,3-thiazol-4-yl)propionic acid | C11H16N2O4S | 详情 | 详情 | |
(VIII) | 64055 | 1,1-dimethylethyl 2-(4-{3-[(4'-cyano[1,1'-biphenyl]-4-yl)oxy]propyl}-1,4-diazepan-1-yl)-2-oxo-1-(1,3-thiazol-4-ylmethyl)ethylcarbamate | C32H39N5O4S | 详情 | 详情 |