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【结 构 式】

【分子编号】65715

【品名】tert-Butyl 3-amino-4,6-dihydropyrrolo[3,4-C]pyrozole-5-carboxylate; 5-Boc-3-amino-4,6-dihydropyrrolo[3,4-c]pyrozole

【CA登记号】398491-59-3

【 分 子 式 】C10H16N4O2

【 分 子 量 】224.2628

【元素组成】C 53.56% H 7.19% N 24.98% O 14.27%

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:(I)

Protection of 3-amino-5-Boc-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole (I) by treatment with ethyl chloroformate and DIEA gives the 1-ethoxycarbonyl derivative (II). After conversion of 4-(4-methylpiperazinyl)benzoic acid (III) to the corresponding acid chloride by means of oxalyl chloride and DMF, coupling with the amino heterocycle (II) furnishes the amide (IV). The N-Boc group of (IV) is then selectively deprotected under acidic conditions to give (V). Activation of (R)-α-methoxyphenylacetic acid (VI) with oxalyl choride and DMF gives the acid chloride (VII), which is coupled with the deprotected pyrrolopyrazole (V) to yield amide (VIII). Finally, the ethoxycarbonyl group of (VIII) is removed by treatment with Et3N in MeOH to provide the title compound (1, 2). Scheme 1.

1 Fancelli, D., Forte, B., Moll, J., Varasi, M., Vianello, P. (Pfizer Italia Srl). Pyrrolo[3,4-c]pyrazole derivatives active as kinase inhibitors. EP 1644376, US 2005032839, WO 2005005427.
2 Fancelli, D., Moll, J., Varasi, M. et al. 1,4,5,6-Tetrahydropyrrolo[3,4-c]pyrazoles: Identification of a potent Aurora kinase inhibitor with a favorable antitumor kinase inhibition profile. J Med Chem 2006, 49(24): 7247-51.
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) 65715 tert-Butyl 3-amino-4,6-dihydropyrrolo[3,4-C]pyrozole-5-carboxylate; 5-Boc-3-amino-4,6-dihydropyrrolo[3,4-c]pyrozole 398491-59-3 C10H16N4O2 详情 详情
(II) 65716 Ethyl 5-(tert-butoxycarbonyl)-3-amino-4,6-dihydropyrrolo[3,4-c]pyrazole-1-carboxylate; 3-Amino-5-((tert-butoxy)carbonyl)-4,6-dihydropyrrolo[3,4-c]pyrazole-1-carboxylic acid ethyl ester; 3-Amino-5-tert-butyloxycarbonyl-1-ethoxycarbonyl-4,6-dihydro-1H-pyrrolo[3,4-c]pyrazole 398495-65-3 C13H20N4O4 详情 详情
(III) 65717 4-(4-Methylpiperazino)benzoic acid; 4-(4-Methylpiperazin-1-yl)benzoic acid 86620-62-4 C12H16N2O2 详情 详情
(IV) 65718 1-Ethyl 5-(2-methyl-2-propanyl) 3-{[4-(4-methyl-1-piperazinyl)benzoyl]amino}-4,6-dihydropyrrolo[3,4-c]pyrazole-1,5-dicarboxylate 761443-69-0 C25H34N6O5 详情 详情
(V) 65719 Ethyl 3-{[4-(4-methyl-1-piperazinyl)benzoyl]amino}-5,6-dihydropyrrolo[3,4-c]pyrazole-1(4H)-carboxylate 761443-50-9 C20H26N6O3 详情 详情
(VI) 50060 (2R)-2-methoxy-2-phenylethanoic acid 3966-32-3 C9H10O3 详情 详情
(VII) 16302 (2R)-2-methoxy-2-phenylethanoyl chloride C9H9ClO2 详情 详情
(VIII) 65720     C29H34N6O5 详情 详情
Extended Information