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【结 构 式】

【分子编号】34429

【品名】2-[(3S)-2,6-dioxopiperidinyl]-4-nitro-1H-isoindole-1,3(2H)-dione

【CA登记号】

【 分 子 式 】C13H9N3O6

【 分 子 量 】303.23108

【元素组成】C 51.49% H 2.99% N 13.86% O 31.66%

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:(VI)

Treatment of 3-nitrophthalimide (I) with ethyl chloroformate and triethylamine produced 3-nitro-N-(ethoxycarbonyl)phthalimide (II), which was condensed with L-glutamine tert-butyl ester hydrochloride (III) to afford the phthaloyl glutamine derivative (IV). Acidic cleavage of the tert-butyl ester of (IV) provided the corresponding carboxylic acid (V). This was cyclized to the required glutarimide (VI) upon treatment with thionyl chloride and then with triethylamine. The nitro group of (VI) was finally reduced to amine by hydrogenation over Pd/C.

1 Muller, G.W.; Huang, S.-Y.; Chen, R.; et al.; Amino-substituted thalidomide analogs: Potent inhibitors of TNF-alpha production. Bioorg Med Chem Lett 1999, 9, 11, 1625.
2 Stirling, D.I.; Chen, R.S.-C.; Muller, G.W. (Celgene Corp.); Substd. 2-(2,6-dioxopiperidin-3-yl)-phthalimides and 1-oxoisoindolines and method of reducing TNFalpha levels. EP 0925294; EP 0984955; US 5635517; WO 9803502; WO 9854170 .
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) 34424 4-nitro-1H-isoindole-1,3(2H)-dione;3-nitrophthalimide 603-62-3 C8H4N2O4 详情 详情
(II) 34425 ethyl 4-nitro-1,3-dioxo-1,3-dihydro-2H-isoindole-2-carboxylate C11H8N2O6 详情 详情
(III) 34426 tert-butyl (2S)-2,5-diamino-5-oxopentanoate C9H18N2O3 详情 详情
(IV) 34427 tert-butyl (2S)-5-amino-2-(4-nitro-1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-5-oxopentanoate C17H19N3O7 详情 详情
(V) 34428 (2S)-5-amino-2-(4-nitro-1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-5-oxopentanoic acid C13H11N3O7 详情 详情
(VI) 34429 2-[(3S)-2,6-dioxopiperidinyl]-4-nitro-1H-isoindole-1,3(2H)-dione C13H9N3O6 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

The cyclization of N-(benzyloxycarbonyl)-L-glutamine (I) by means of CDI in THF gives the piperidinedione (II), which is deprotected by means of HBr in AcOH to yield 3(S)-aminopiperidine-2,6-dione (III).The condensation of (III) with 3-nitrophthalic anhydride (IV) in hot DMF/AcOH affords 3(S)-phthalimido-piperidine-2,6-dione (V), which is finally reduced with H2 over Pd/C in dioxane/methanol to provide the target thalidomide derivative.

1 D'Amato, R.J.; Shah, J.H.; Hunsucker, K.A.; Pribluda, V.; Treston, A.; Rougas, J.; Conner, B.P.; Swartz, G.M. (Children's Medical Center Corp.); Synthesis of 3-amino-thalidomide and its enantiomers. WO 0264083 .
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) 26289 (2S)-5-amino-2-[[(benzyloxy)carbonyl]amino]-5-oxopentanoic acid C13H16N2O5 详情 详情
(II) 64520 benzyl (3S)-2,6-dioxopiperidinylcarbamate C13H14N2O4 详情 详情
(III) 48171 (3S)-3-amino-2,6-piperidinedione C5H8N2O2 详情 详情
(IV) 46407 4-nitro-2-benzofuran-1,3-dione;3-nitrophthalic anhydride 641-70-3 C8H3NO5 详情 详情
(V) 34429 2-[(3S)-2,6-dioxopiperidinyl]-4-nitro-1H-isoindole-1,3(2H)-dione C13H9N3O6 详情 详情
Extended Information