heptyl 4-(5-oxo-4,5-dihydro-2-pyrazinyl)phenylcarbamate -Drug Synthesis Database

【结构式】

【分子编号】24077

【品名】heptyl 4-(5-oxo-4,5-dihydro-2-pyrazinyl)phenylcarbamate

【CA登记号】

【分子式】C₁₈H₂₃N₃O₃

【分子量】329.39904

【元素组成】C 65.63% H 7.04% N 12.76% O 14.57%

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：(IV)

2) The condensation of (I) with benzyl-N-hydroxy-N-phenylcarbamate (III) in ethanolic KOH gives 5-[4-(benzyloxycarbonylamino)phenyl]pyrazin-2(1H)-one (IV), which is hydrolyzed witn HBr in acetic acid yielding 5-(4-aminophenyl)pyrazin-2(1H)-one (V). Finally, this compound is acetylated with acetic anhydride.

参考文献中间体

合成目标

【1】 Coates, W.J. (SmithKline Beecham plc); 5-(4-Nitrophenyl)-2(1H)-pyrazinones. EP 0096517; US 4514568; US 4556711 .
【2】 Prous, J.; Castaner, J.; SK&F-94120. Drugs Fut 1986, 11, 2, 129.

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)	24075	2-chloropyrazine	14508-49-7	C₄H₃ClN₂	详情	详情
(III)	24076	heptyl hydroxy(phenyl)carbamate		C₁₄H₂₁NO₃	详情	详情
(IV)	24077	heptyl 4-(5-oxo-4,5-dihydro-2-pyrazinyl)phenylcarbamate		C₁₈H₂₃N₃O₃	详情	详情
(V)	24078	4-(4,5-dihydro-2-pyrazinyl)aniline		C₁₀H₁₁N₃	详情	详情

Extended Information