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【结 构 式】 
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【药物名称】 【化学名称】N-(4-Chlorophenyl)-4-(6,7-dimethoxyquinazolin-4-yl)piperazine-1-carboxamide 【CA登记号】 【 分 子 式 】C21H22ClN5O3 【 分 子 量 】427.89419 |
【开发单位】Kyowa Hakko (Originator), Millennium (Originator) 【药理作用】Atherosclerosis Therapy, CARDIOVASCULAR DRUGS, Restenosis Treatment of, Treatment of Disorders of the Coronary Arteries and Atherosclerosis, PDGFR Inhibitors |
合成路线1
The target piperazine-1-carboxamide has been obtained by several different methods: 1.- The condensation of 6,7-dimethoxy-4-(1-piperazinyl)quinazoline (I) with 4-chlorophenyl isocyanate (II) in DMF gives the target compound. 2.- The condensation of 6,7-dimethoxy-4-(1-piperazinyl)quinazoline (I) with 4-chlorophenylamine (III) by means of CDI or triphosgene also gives the target piperazine-1-carboxamide. 3.- The reaction of 4-chlorophenylamine (III) with 4-nitrophenyl chloroformate (IV) by means of TEA gives the carbamate (V), which is finally condensed with the quinazoline (I) in hot NMP to yield the target piperazine-1-carboxamide.
| 【1】 Matsuno, K.; Ichimura, M.; Nakajima, T.; Tahara, K.; Fujiwara, S.; Kase, H.; Ushiki, J.; Giese, N.A.; Pandey, A.; Scarborough, R.M.; Lokker, N.A.; Yu, J.C.; Irie, J.; Tsukuda, E.; Ide, S.-i; Oda, S.; Nomoto, Y.; Potent and selective inhibitors of platelet-derived growth factor receptor phosphorylation. 1. Synthesis, structure-activity relationship, and biological effects of a new class of quinazoline derivatives. J Med Chem 2002, 45, 14, 3057. |
| 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) | 41610 | 6,7-dimethoxy-4-(1-piperazinyl)quinazoline; 6-methoxy-4-(1-piperazinyl)-7-quinazolinyl methyl ether | C14H18N4O2 | 详情 | 详情 | |
| (II) | 12035 | 4-chlorophenyl isocyanate; 1-Chloro-4-isocyanatobenzene; p-Chlorophenyl isocyanate | 104-12-1 | C7H4ClNO | 详情 | 详情 |
| (III) | 12034 | 4-Chlorophenylamine; 4-Chloroaniline; p-Chloroaniline | 106-47-8 | C6H6ClN | 详情 | 详情 |
| (IV) | 16605 | 4-Nitrophenyl chloroformate; 1-[(Chlorocarbonyl)oxy]-4-nitrobenzene | 7693-46-1 | C7H4ClNO4 | 详情 | 详情 |
| (V) | 63171 | 4-nitrophenyl 4-chlorophenylcarbamate | C13H9ClN2O4 | 详情 | 详情 |