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

【结 构 式】

【分子编号】59625

【品名】tert-butyl 2-{[(4'-chloro[1,1'-biphenyl]-4-yl)sulfanyl]methyl}-4-[4-oxo-1,2,3-benzotriazin-3(4H)-yl]butanoate

【CA登记号】

【 分 子 式 】C28H28ClN3O3S

【 分 子 量 】522.06744

【元素组成】C 64.42% H 5.41% Cl 6.79% N 8.05% O 9.19% S 6.14%

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:(XI)

Itaconic acid mono-tert-butyl ester (IV) was prepared via esterification of itaconic acid (I) with methanol in the presence of an acidic ion exchange resin to form the mono-methyl ester (II), which was further converted to methyl tert-butyl ester (III) upon treatment with isobutylene and sulfuric acid. Subsequent hydrolysis of the methyl ester function of (III) using LiOH furnished mono-ester (IV). Reduction of acid (IV) to the primary alcohol (V) was accomplished using the NaBH4-I2 reagent. Michael addition of p-bromothiophenol (VI) to the unsaturated ester (V) provided the thioether adduct (VII). Mitsunobu coupling of alcohol (VII) with benzo[1,2,3]triazin-4-one (VIII) yielded the 3-substituted triazinone (IX). The biphenyl system (XI) was then obtained by Suzuki coupling of the aryl bromide (IX) with (4-chlorophenyl)tributyltin (X) in the presence of palladium tetrakis(triphenylphosphine) and lithium chloride. Trifluoroacetic acid-promoted cleavage of the tert-butyl ester group of (XI) gave acid (XII), which was subsequently coupled to O-allyl hydroxylamine (XIII) to afford the allyl hydroxamate (XIV). The O-allyl group was finally removed by treatment with tributyltin hydride and a palladium catalyst.

1 Le Diguarher, T.; Kucharvzyk, N.; Chollet, A.-M.; et al.; Solid-phase synthesis of alpha-substituted 3-bisarylthio N-hydroxy propionamides as specific MMP inhibitors. Bioorg Med Chem 2002, 10, 3, 531.
2 Guilbaud, N.; Atassi, G.; Le Diguarher, T.; Bonnet, J.; Sabatini, M.; Casara, P.; Chollet, A.-M.; Pierre, A.; Tucker, G. (ADIR et Cie.); Carboxylic and hydroxamic acid cpds. inhibiting metalloproteases, method for preparing same and pharmaceutical compsns. containing them. EP 1091937; FR 2780402; WO 0000473 .
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) 27493 2-methylenesuccinic acid 97-65-4 C5H6O4 详情 详情
(II) 34820 2-(2-methoxy-2-oxoethyl)acrylic acid 7338-27-4 C6H8O4 详情 详情
(III) 59619 1-(tert-butyl) 4-methyl 2-methylenesuccinate C10H16O4 详情 详情
(IV) 59620 3-(tert-butoxycarbonyl)-3-butenoic acid C9H14O4 详情 详情
(V) 59621 tert-butyl 2-(2-hydroxyethyl)acrylate C9H16O3 详情 详情
(VI) 29626 4-bromophenylhydrosulfide; 4-bromobenzenethiol 106-53-6 C6H5BrS 详情 详情
(VII) 59622 tert-butyl 2-{[(4-bromophenyl)sulfanyl]methyl}-4-hydroxybutanoate C15H21BrO3S 详情 详情
(VIII) 36890 1,2,3-benzotriazin-4(3H)-one C7H5N3O 详情 详情
(IX) 59623 tert-butyl 2-{[(4-bromophenyl)sulfanyl]methyl}-4-[4-oxo-1,2,3-benzotriazin-3(4H)-yl]butanoate C22H24BrN3O3S 详情 详情
(X) 59624 tributyl(4-chlorophenyl)stannane C18H31ClSn 详情 详情
(XI) 59625 tert-butyl 2-{[(4'-chloro[1,1'-biphenyl]-4-yl)sulfanyl]methyl}-4-[4-oxo-1,2,3-benzotriazin-3(4H)-yl]butanoate C28H28ClN3O3S 详情 详情
(XII) 59626 2-{[(4'-chloro[1,1'-biphenyl]-4-yl)sulfanyl]methyl}-4-[4-oxo-1,2,3-benzotriazin-3(4H)-yl]butanoic acid C24H20ClN3O3S 详情 详情
(XIII) 49195 3-(aminooxy)-1-propene; O-allylhydroxylamine C3H7NO 详情 详情
(XIV) 59627 N-(allyloxy)-2-{[(4'-chloro[1,1'-biphenyl]-4-yl)sulfanyl]methyl}-4-[4-oxo-1,2,3-benzotriazin-3(4H)-yl]butanamide C27H25ClN4O3S 详情 详情
Extended Information