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【结 构 式】

【分子编号】43459

【品名】benzyl (2S)-2-[[(benzyloxy)carbonyl]amino]-4-chloro-4-oxobutanoate

【CA登记号】

【 分 子 式 】C19H18ClNO5

【 分 子 量 】375.80836

【元素组成】C 60.72% H 4.83% Cl 9.43% N 3.73% O 21.29%

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:(VIII)

Amine intermediate (XIV) has been obtained as follows: N-(Carbobenzoxy)-L-aspartic acid alpha-benzyl ester (VII) was converted to acid chloride (VIII) and then coupled to 2-aminophenyl disulfide (IX) to afford the bis-amide (X). Reductive cleavage of the disulfide group of (X), followed by basic cyclization, produced the benzothiazole (XI) (2). Hydrolysis of the benzyl ester group of (XI) and subsequent coupling of the resulting carboxylic acid (XII) with piperidine (VI) gave amide (XIII). The carbobenzoxy group of (XII) was then cleaved with HBr in HOAc, yielding intermediate amine (XIV).

1 Baettig, U.; et al.; The design and synthesis of thrombin inhibitors: Analogues of MD805 containing non-polar surrogates for arginine at the P1 position. Bioorg Med Chem Lett 2000, 10, 14, 1563.
2 Smith, G.P.; Brundish, D.E.; Menear, K.A.; Walker, C.V.; Herold, P.; Fullerton, J.D.; Allen, M.C.; Le Grand, D.M.; Kane, P.D.; Cockcroft, X.-L.; Wathey, W.B.; Butler, P.I.; Hatto, J.D.I.; Hayler, J.D. (Novartis AG); Tetrahydroquinoline inhibitors of trypsin and thrombin. GB 2312674 .
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) 28517 4-(2-fluoroethyl)piperidine C7H14FN 详情 详情
(VII) 43458 (3S)-4-(benzyloxy)-3-[[(benzyloxy)carbonyl]amino]-4-oxobutyric acid 4779-31-1 C19H19NO6 详情 详情
(VIII) 43459 benzyl (2S)-2-[[(benzyloxy)carbonyl]amino]-4-chloro-4-oxobutanoate C19H18ClNO5 详情 详情
(IX) 43460 2-[(2-aminophenyl)disulfanyl]aniline; 2-[(2-aminophenyl)disulfanyl]phenylamine 1141-88-4 C12H12N2S2 详情 详情
(X) 43461 benzyl (2S)-4-[2-([2-[((3S)-4-(benzyloxy)-3-[[(benzyloxy)carbonyl]amino]-4-oxobutanoyl)amino]phenyl]disulfanyl)anilino]-2-[[(benzyloxy)carbonyl]amino]-4-oxobutanoate C50H46N4O10S2 详情 详情
(XI) 43462 benzyl (2S)-3-(1,3-benzothiazol-2-yl)-2-[[(benzyloxy)carbonyl]amino]propanoate C25H22N2O4S 详情 详情
(XII) 43463 (2S)-3-(1,3-benzothiazol-2-yl)-2-[[(benzyloxy)carbonyl]amino]propionic acid C18H16N2O4S 详情 详情
(XIII) 43464 benzyl (1S)-1-(1,3-benzothiazol-2-ylmethyl)-2-[4-(2-fluoroethyl)-1-piperidinyl]-2-oxoethylcarbamate C25H28FN3O3S 详情 详情
(XIV) 43465 (2S)-2-amino-3-(1,3-benzothiazol-2-yl)-1-[4-(2-fluoroethyl)-1-piperidinyl]-1-propanone C17H22FN3OS 详情 详情
Extended Information