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【结 构 式】

【分子编号】62273

【品名】tert-butyl (3S)-3-{[(benzyloxy)carbonyl]amino}-6-(methylamino)hexanoate

【CA登记号】

【 分 子 式 】C19H30N2O4

【 分 子 量 】350.45828

【元素组成】C 65.12% H 8.63% N 7.99% O 18.26%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(VI)

The N-Boc group of the orthogonally protected beta-lysine (I) is removed by acidic treatment to provide amine (II), which is further reprotected as the trifluoroacetamide (III) by reaction with methyl trifluoroacetate. Transesterification of acid (III) with t-butyl acetate in the presence of HClO4 gives rise to the corresponding t-butyl ester (IV). Selective methylation of the trifluoroacetamide N of (IV) furnishes the N-methyl amide (V), which is subsequently hydrolyzed to the N-methyl amine (VI) under alkaline conditions. Guanidylation of amine (VI) with N,N'-bis-carbobenzoxy-1-amidinopyrazole (VII) leads to the protected guanidine (VIII). Then, acidic cleavage of the tert-butyl ester group of (VIII) provides carboxylic acid (IX)

1 Brands, M.; Endermann, R.; Gahlmann, R.; et al.; Novel antibiotics for the treatment of gram-positive bacterial infections. J Med Chem 2002, 45, 19, 4246.
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) 62268 (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[(tert-butoxycarbonyl)amino]hexanoic acid C19H28N2O6 详情 详情
(II) 62269 (3S)-6-amino-3-{[(benzyloxy)carbonyl]amino}hexanoic acid C14H20N2O4 详情 详情
(III) 62270 (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[(2,2,2-trifluoroacetyl)amino]hexanoic acid C16H19F3N2O5 详情 详情
(IV) 62271 tert-butyl (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[(2,2,2-trifluoroacetyl)amino]hexanoate C20H27F3N2O5 详情 详情
(V) 62272 tert-butyl (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[methyl(2,2,2-trifluoroacetyl)amino]hexanoate C21H29F3N2O5 详情 详情
(VI) 62273 tert-butyl (3S)-3-{[(benzyloxy)carbonyl]amino}-6-(methylamino)hexanoate C19H30N2O4 详情 详情
(VII) 60787   C6H10N4 详情 详情
(VIII) 62274 tert-butyl (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[({[(benzyloxy)carbonyl]amino}{[(benzyloxy)carbonyl]imino}methyl)(methyl)amino]hexanoate C36H44N4O8 详情 详情
(IX) 62275 (3S)-3-{[(benzyloxy)carbonyl]amino}-6-[({[(benzyloxy)carbonyl]amino}{[(benzyloxy)carbonyl]imino}methyl)(methyl)amino]hexanoic acid C32H36N4O8 详情 详情
Extended Information