【结 构 式】 |
【药物名称】MLN-576, XR-11576 【化学名称】N-[2-(Dimethylamino)-1(R)-methylethyl]-4-methoxybenzo[a]phenazine-11-carboxamide 【CA登记号】 【 分 子 式 】C23H24N4O2 【 分 子 量 】388.47333 |
【开发单位】Xenova (Originator), Millennium (Licensee) 【药理作用】Oncolytic Drugs, Solid Tumors Therapy, Antimitotic Drugs, DNA Topoisomerase I Inhibitors, DNA Topoisomerase II Inhibitors |
合成路线1
The oxidation of 5-methoxy-1-tetralone (I) with SeO2 gives 5-methoxy-1,2-naphthoquinone (II), which is cyclized with 2,3-diaminobenzoic acid (II) by means of HCl in refluxing ethanol to yield 4-methoxybenzo[a]phenazine-11-carboxylic acid (IV). Finally, this acid is converted into the target amide by its condensation with N1,N1,2(R)-trimethylethane-1,2-diamine (V) by means of CDI in DMF.
【1】 Vicker, N.; Burgess, L.; Chuckowree, I.S.; et al.; Novel angular benzophenazines: Dual topoisomerase I and topoisomerase II inhibitors as potential anticancer agents. J Med Chem 2002, 45, 3, 721. |
【2】 Vicker, N.; Folkes, A.J.; Wang, S.; Milton, J.; Denny, W.A. (Xenova Group plc); Benzo[a]phenazin-11-carboxamide derivs. and their use as joint inhibitors of topomerase I and II. WO 0146157 . |
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) | 18568 | 5-methoxy-3,4-dihydro-1(2H)-naphthalenone | 33892-75-0 | C11H12O2 | 详情 | 详情 |
(II) | 47913 | 5-methoxy-1,2-naphthalenedione | C11H8O3 | 详情 | 详情 | |
(III) | 47914 | 2,3-diaminobenzoic acid | C7H8N2O2 | 详情 | 详情 | |
(IV) | 47915 | 4-methoxybenzo[a]phenazine-11-carboxylic acid | C18H12N2O3 | 详情 | 详情 | |
(V) | 47916 | (2R)-N(1),N(1)-dimethyl-1,2-propanediamine; N-[(2R)-2-aminopropyl]-N,N-dimethylamine | C5H14N2 | 详情 | 详情 |
合成路线2
The intermediate chiral diamine (IV) (see Scheme no. 28794701a, intermediate (V)) is prepared as follows: Reduction of N-Boc-D-alanine methyl ester (I) with DIBAL affords N-Boc-alaninal (II), which is reductively aminated with dimethylamine in the presence of NaBH3CN to afford the Boc-protected diamine (III). The N-Boc group of (III) is finally removed under acidic conditions to provide the target (R)-diamine (IV).
【1】 Vicker, N.; Burgess, L.; Chuckowree, I.S.; et al.; Novel angular benzophenazines: Dual topoisomerase I and topoisomerase II inhibitors as potential anticancer agents. J Med Chem 2002, 45, 3, 721. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(V) | 47916 | (2R)-N(1),N(1)-dimethyl-1,2-propanediamine; N-[(2R)-2-aminopropyl]-N,N-dimethylamine | C5H14N2 | 详情 | 详情 | |
(VI) | 55655 | methyl (2R)-2-[(tert-butoxycarbonyl)amino]propanoate | C9H17NO4 | 详情 | 详情 | |
(VII) | 55656 | tert-butyl (1R)-1-methyl-2-oxoethylcarbamate | C8H15NO3 | 详情 | 详情 | |
(VIII) | 55657 | tert-butyl (1R)-2-(dimethylamino)-1-methylethylcarbamate | C10H22N2O2 | 详情 | 详情 |