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【结 构 式】 
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【药物名称】 【化学名称】5-[2-[4-(3-Chlorophenyl)piperazin-1-yl]ethylamino]-3-methyl-4-benzyl-6H-1,2-oxazin-6-one 【CA登记号】 【 分 子 式 】C24H27ClN4O2 【 分 子 量 】438.96139 |
【开发单位】Université d'Auvergne-Clermont-Ferrand (Originator) 【药理作用】ANALGESIC AND ANESTHETIC DRUGS, Analgesic Drugs |
合成路线1
Oxazinone (II) was prepared by cyclization of the unsaturated keto acid (I) with hydroxylamine. Subsequent radical bromination of (II) with N-bromosuccinimide (NBS) provided the alpha-bromobenzyl derivative (III). Alkylation of 3-chlorophenyl piperazine (IV) with N-(2-bromoethyl)phthalimide (V) gave adduct (VI). Further hydrazinolysis of the phthaloyl group of (VI) yielded the primary amine (VII). Finally, condensation between bromide (III) and amine (VII) in refluxing THF furnished the title 5-amino oxazinone derivative.
| 【1】 Rubat, C.; Bebot, M.; Fialip, J.; Coudert, P.; Courteix, C.; Couquelet, J.; Synthesis and analgesic effects of 5-[4-(arylpiperazin-1-yl)alkylamino]-4-benzyl-3-methyl-1,2-oxazin-6-ones. Arzneim-Forsch Drug Res 2000, 50, 4, 353. |
| 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) | 46968 | (E)-3-benzyl-4-oxo-2-pentenoic acid | C12H12O3 | 详情 | 详情 | |
| (II) | 46969 | 4-benzyl-3-methyl-6H-1,2-oxazin-6-one | C12H11NO2 | 详情 | 详情 | |
| (III) | 46970 | 4-[bromo(phenyl)methyl]-3-methyl-6H-1,2-oxazin-6-one | C12H10BrNO2 | 详情 | 详情 | |
| (IV) | 37025 | 2-(2-bromoethyl)-1H-isoindole-1,3(2H)-dione | 574-98-1 | C10H8BrNO2 | 详情 | 详情 |
| (V) | 22114 | 1-(3-chlorophenyl)piperazine | 6640-24-0 | C10H13ClN2 | 详情 | 详情 |
| (VI) | 46971 | 2-[2-[4-(3-chlorophenyl)-1-piperazinyl]ethyl]-1H-isoindole-1,3(2H)-dione | C20H20ClN3O2 | 详情 | 详情 | |
| (VII) | 46972 | 2-[4-(3-chlorophenyl)-1-piperazinyl]-1-ethanamine; 2-[4-(3-chlorophenyl)-1-piperazinyl]ethylamine | C12H18ClN3 | 详情 | 详情 |