【结 构 式】 |
【分子编号】63674 【品名】dimethyl 2-(diethoxyphosphoryl)succinate 【CA登记号】 |
【 分 子 式 】C10H19O7P 【 分 子 量 】282.230422 【元素组成】C 42.56% H 6.79% O 39.68% P 10.97% |
合成路线1
该中间体在本合成路线中的序号:(III)6-Methylnicotinonitrile (I) is oxidized by means of SeO2 in refluxing dioxane to furnish aldehyde (II). Subsequent condensation of (II) with dimethyl 2-(diethoxyphosphoryl)succinate (III) gives rise to the quinolizine derivative (IV). The cyano group of (IV) is then reduced to the primary amine (V) by catalytic hydrogenation over Pd/C. After protecting amine (V) as the corresponding N-Boc derivative (VI), alkaline hydrolysis of the methyl ester group provides acid (VII) (1). Coupling of acid (VII) with (S) t-butyl 3-amino-2-(benzenesulfonylamino)propionate (VIII) by means of HATU leads to amide (IX) (1,2).
【1】 Rej, R.; Lamothe, S.; Zacharie, B.; Labrecque, D.; Courchesne, M.; Falardeau, G.; Abbot, S.; Wang, W.; Chan, L.; Meerovitch, K.; Bergeron, F.; Attardo, G.; Synthesis and in vitro potency of quinolizinone-based alphavbeta3 receptor antagonists. Proc Am Assoc Cancer Res 2002, 43. |
【2】 Attardo, G.; Lamothe, S.; Rej, R.; Zacharie, B.; Falardeau, G.; Labrecque, D.; Courchesne, M.; Abbott, S. (Shire BioChem Inc.); Quinolizinones as integrin inhibitors. EP 1115724; US 6630488; WO 0017197 . |
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) | 63672 | 6-methylnicotinonitrile | C7H6N2 | 详情 | 详情 | |
(II) | 63673 | 6-formylnicotinonitrile | C7H4N2O | 详情 | 详情 | |
(III) | 63674 | dimethyl 2-(diethoxyphosphoryl)succinate | C10H19O7P | 详情 | 详情 | |
(IV) | 63675 | methyl 7-cyano-4-oxo-4H-quinolizine-2-carboxylate | C12H8N2O3 | 详情 | 详情 | |
(V) | 63676 | methyl 7-(aminomethyl)-4-oxo-4H-quinolizine-2-carboxylate | C12H12N2O3 | 详情 | 详情 | |
(VI) | 63677 | methyl 7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizine-2-carboxylate | C17H20N2O5 | 详情 | 详情 | |
(VII) | 63678 | 7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizine-2-carboxylic acid | C16H18N2O5 | 详情 | 详情 | |
(VIII) | 31423 | tert-butyl (2S)-3-amino-2-[(phenylsulfonyl)amino]propanoate | C13H20N2O4S | 详情 | 详情 | |
(IX) | 63679 | tert-butyl (2S)-3-{[(7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizin-2-yl)carbonyl]amino}-2-[(phenylsulfonyl)amino]propanoate | C29H36N4O8S | 详情 | 详情 |