• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【药物名称】LY-368177

【化学名称】3-(2-Amino-1-cyclopentylbenzimidazol-6-yl)-3-(2-fluorophenyl)-N-methyl-2(Z)-propenamide hydrochloride

【CA登记号】

【 分 子 式 】C22H24ClFN4O

【 分 子 量 】414.91418

【开发单位】Lilly (Originator)

【药理作用】ANTIINFECTIVE THERAPY, Anti-Rhinovirus Drugs, Antiviral Drugs

合成路线1

Treatment of 2,4-difluoronitrobenzene (I) with cyclopentylamine (II) in the presence of K2CO3 in THF afforded 2-cyclopentylamino-4-fluoronitrobenzene (III). Subsequent condensation of (III) with 2-fluorophenylacetonitrile (IV) by means of potassium tert-butoxide, followed by oxidative treatment of the intermediate nitrile (V) with H2O2 generated benzophenone (VI). The nitro group of (VI) was then reduced by hydrogenation over Raney Nickel yielding diamine (VII), which was cyclized to benzimidazole (VIII) upon treatment with cyanogen bromide. Addition of the lithium anion of N-methyl-N-(trimethylsilyl)acetamide to (VIII) gave beta-hydroxyamide (IX). Finally, acid promoted dehydration of (IX) furnished the corresponding alpha,beta-unsaturated amide, whic was isolated as the hydrochloride salt.

1 Jungheim, L.N.; Shepherd, T.A.; Spitzer, W.A.; Tebbe, M.J. (Eli Lilly and Company); Anti-viral cpds.. EP 0906097; WO 9746237 .
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) 32036 2,4-difluoro-1-nitrobenzene 446-35-5 C6H3F2NO2 详情 详情
(II) 28850 cyclopentanamine 1003-03-8 C5H11N 详情 详情
(III) 37895 N-cyclopentyl-N-(5-fluoro-2-nitrophenyl)amine; N-cyclopentyl-5-fluoro-2-nitroaniline C11H13FN2O2 详情 详情
(IV) 37888 2-(2,3-difluorophenyl)acetonitrile 145689-34-5 C8H5F2N 详情 详情
(V) 37896 2-[3-(cyclopentylamino)-4-nitrophenyl]-2-(2-fluorophenyl)acetonitrile C19H18FN3O2 详情 详情
(VI) 37897 [3-(cyclopentylamino)-4-nitrophenyl](2-fluorophenyl)methanone C18H17FN2O3 详情 详情
(VII) 37898 [4-amino-3-(cyclopentylamino)phenyl](2-fluorophenyl)methanone C18H19FN2O 详情 详情
(VIII) 37899 (2-amino-1-cyclopentyl-1H-benzimidazol-6-yl)(2-fluorophenyl)methanone C19H18FN3O 详情 详情
(IX) 37900 3-(2-amino-1-cyclopentyl-1H-benzimidazol-6-yl)-3-(2-fluorophenyl)-3-hydroxy-N-methylpropanamide C22H25FN4O2 详情 详情
Extended Information