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【结 构 式】

【分子编号】21638

【品名】(4S)-4-(tert-butyl)-1,3-oxazolidine-2,5-dione

【CA登记号】

【 分 子 式 】C7H11NO3

【 分 子 量 】157.16928

【元素组成】C 53.49% H 7.05% N 8.91% O 30.54%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(I)

Friedel Crafts acylation of indole (II) with tert-leucine N-carboxyanhydride (I) in the presence of AlCl3 gave aminoketone (III). Subsequent condensation of (III) with the succinate building block (IV) in DMF afforded succinamide (V). Further deprotection of the tert-butyl ester of (V) by treatment with trifluoroacetic acid provided carboxylic acid (VI), which was coupled with O-tert-butyldimethylsilyl hydroxylamine (VII) in the presence of EDC and HOBt to yield, after desilylation, the target hydroxamic acid.

1 Sheppard, G.S.; Florjancic, A.S.; Giesler, J.R.; Xu, L.; Guo, Y.; Davidsen, S.K.; Marcotte, P.A.; Elmore, I.; Albert, D.H.; Terrance, J.M.; Bouska, J.J.; Goodfellow, C.L.; Morgan, D.W.; Summers, J.B.; Aryl ketones as novel replacements for the C-terminal amide bond of succinyl hydroxamate MMP inhibitors. Bioorg Med Chem Lett 1998, 8, 22, 3251.
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) 21638 (4S)-4-(tert-butyl)-1,3-oxazolidine-2,5-dione C7H11NO3 详情 详情
(II) 15292 Indole; 1H-indole 120-72-9 C8H7N 详情 详情
(III) 21640 (2S)-2-amino-1-(1H-indol-3-yl)-3,3-dimethyl-1-butanone C14H18N2O 详情 详情
(IV) 21641 1-(tert-butyl) 4-(2,3,4,5,6-pentafluorophenyl) (2S,3R)-2-allyl-3-isobutylbutanedioate C21H25F5O4 详情 详情
(V) 21642 tert-butyl (2S)-2-[(1R)-1-([[(1S)-1-(1H-indol-3-ylcarbonyl)-2,2-dimethylpropyl]amino]carbonyl)-3-methylbutyl]-4-pentenoate C29H42N2O4 详情 详情
(VI) 21643 (2S)-2-[(1R)-1-([[(1S)-1-(1H-indol-3-ylcarbonyl)-2,2-dimethylpropyl]amino]carbonyl)-3-methylbutyl]-4-pentenoic acid C25H34N2O4 详情 详情
(VII) 21644 (Aminooxy)(tert-butyl)dimethylsilane; O-[tert-Butyl(dimethyl)silyl]hydroxylamine 41879-39-4 C6H17NOSi 详情 详情

合成路线2

该中间体在本合成路线中的序号:(I)

Friedel Crafts acylation of indole (II) with tert-leucine N-carboxyanhydride (I) in the presence of AlCl3 gave aminoketone (III). Subsequent condensation of (III) with the malate building block (IV) in DMF afforded amide (V). Further deprotection of the tert-butyl ester of (V) by treatment with trifluoroacetic acid provided carboxylic acid (VI), which was coupled with O-tert-butyldimethylsilyl hydroxylamine (VII) in the presence of EDC and HOBt to yield, after desilylation, the target hydroxamic acid.

1 Sheppard, G.S.; Florjancic, A.S.; Giesler, J.R.; Xu, L.; Guo, Y.; Davidsen, S.K.; Marcotte, P.A.; Elmore, I.; Albert, D.H.; Terrance, J.M.; Bouska, J.J.; Goodfellow, C.L.; Morgan, D.W.; Summers, J.B.; Aryl ketones as novel replacements for the C-terminal amide bond of succinyl hydroxamate MMP inhibitors. Bioorg Med Chem Lett 1998, 8, 22, 3251.
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) 21638 (4S)-4-(tert-butyl)-1,3-oxazolidine-2,5-dione C7H11NO3 详情 详情
(II) 15292 Indole; 1H-indole 120-72-9 C8H7N 详情 详情
(III) 21640 (2S)-2-amino-1-(1H-indol-3-yl)-3,3-dimethyl-1-butanone C14H18N2O 详情 详情
(IV) 21662 1-(tert-butyl) 4-(2,3,4,5,6-pentafluorophenyl) (2S,3R)-2-hydroxy-3-isobutylbutanedioate C18H21F5O5 详情 详情
(V) 21663 tert-butyl (2S,3R)-2-hydroxy-3-([[(1S)-1-(1H-indol-3-ylcarbonyl)-2,2-dimethylpropyl]amino]carbonyl)-5-methylhexanoate C26H38N2O5 详情 详情
(VI) 21664 (2S,3R)-2-hydroxy-3-([[(1S)-1-(1H-indol-3-ylcarbonyl)-2,2-dimethylpropyl]amino]carbonyl)-5-methylhexanoic acid C22H30N2O5 详情 详情
(VII) 21644 (Aminooxy)(tert-butyl)dimethylsilane; O-[tert-Butyl(dimethyl)silyl]hydroxylamine 41879-39-4 C6H17NOSi 详情 详情
Extended Information