【结 构 式】 |
【分子编号】16917 【品名】4'-(bromomethyl)-N-(tert-butyl)[1,1'-biphenyl]-2-carboxamide 【CA登记号】 |
【 分 子 式 】C18H20BrNO 【 分 子 量 】346.26694 【元素组成】C 62.44% H 5.82% Br 23.08% N 4.05% O 4.62% |
合成路线1
该中间体在本合成路线中的序号:(XVI)3) The amidation of 4'-methylbiphenyl-2-carboxylic acid (XIV) with tert-butylamine by means of oxalyl chloride in dichloromethane gives the corresponding tert-butylamide (XV), which is brominated with N-bromosuccinimide (NBS) and benzoyl peroxide in CCl4 yielding 4'-(bromomethyl)-N-(tert-butyl)biphenyl-2-carboxamide (XVI). The condensation of (XVI) with 4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylic acid ethyl ester (VI) by means of potassium tert-butoxide in DMA affords 1-[2'-(N-tert-butylcarbamoyl)biphenyl-4-ylmethyl]-4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylic acid ethyl ester (XVII), which by reaction with oxalyl chloride in dichloromethane is converted into 1-(2'-cyanobiphenyl-4-ylmethyl)-4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylic acid ethyl ester (XVIII). The cyclization of (XVIII) with tributyltin azide in toluene gives 4-(1-hydroxy-1-methylethyl)-2-propyl 1-[2'-(5-tetrazolyl)biphenyl-4-ylmethyl]imidazole-5-carboxylic acid ethyl ester (XIX), which is finally tritiated with trityl chloride in pyridine to afford 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[2'-[1-(triphenylmethyl)-5-tetrazolyl]biphenyl-4-ylmethyl]imidazole-5-carboxylic acid ethyl ester (VIII), already obtained.
【1】 Mizuno, M.; Sada, T.; Ikeda, M.; Fukuda, N.; Miyamoto, M.; Yanagisawa, H.; Koike, H.; Pharmacology of CS-866, a novel nonpeptide angiotensin II receptor antagonist. Eur J Pharmacol 1992, 285, 181-188. |
【2】 Graul, A.; Leeson, P.; Castañer, J.; CS-866. Drugs Fut 1997, 22, 11, 1205. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VI) | 16907 | ethyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylate | C12H20N2O3 | 详情 | 详情 | |
(VIII) | 16909 | ethyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[[2'-(1-trityl-1H-1,2,3,4-tetraazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxylate | C45H44N6O3 | 详情 | 详情 | |
(XIV) | 16915 | 4'-methyl[1,1'-biphenyl]-2-carboxylic acid | 7148-03-0 | C14H12O2 | 详情 | 详情 |
(XV) | 16916 | N-(tert-butyl)-4'-methyl[1,1'-biphenyl]-2-carboxamide | C18H21NO | 详情 | 详情 | |
(XVI) | 16917 | 4'-(bromomethyl)-N-(tert-butyl)[1,1'-biphenyl]-2-carboxamide | C18H20BrNO | 详情 | 详情 | |
(XVII) | 16918 | ethyl 1-([2'-[(tert-butylamino)carbonyl][1,1'-biphenyl]-4-yl]methyl)-4-(1-hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylate | C30H39N3O4 | 详情 | 详情 | |
(XVIII) | 16919 | ethyl 1-[(2'-cyano[1,1'-biphenyl]-4-yl)methyl]-4-(1-hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylate | C26H29N3O3 | 详情 | 详情 | |
(XIX) | 16920 | ethyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[[2'-(1H-1,2,3,4-tetraazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxylate | C26H30N6O3 | 详情 | 详情 |