KCA-098-药物合成数据库

【药物名称】KCA-098

化学结构式(Chemical Structure):

参考文献No.	12148
标题:	Benzofuro[3,2-c]quinoline cpds
作者:	Kamijo, T.; Ujiie, A.; Harada, H.; Tsutsumi, N.; Tsubaki, A.; Yamaguchi, T.; Nagata, H. (Kissei Pharmaceutical Co., Ltd.)
来源:	AU 8930977; EP 0357172; JP 1990062878; US 5023261

合成路线图解说明: The cyclization of m-anisidine (I) with 2,4-dimethoxyphenylmalonic acid diethyl ester (II) in refluxing diphenyl ether (270-90 C) gives 3-(2,4-dimethoxyphenyl)-4-hydroxy-7-methoxyquinolin-2-(1H)-one (III), which is submitted to a new cyclization process in refluxing 47% aqueous HBr yielding 3,9-dihydroxybenzofuro[3,2-c]quinolin-6-(5H)-one (IV). Finally, this compound is esterified with N,N-dimethylcarbamoyl chloride (V) by means of triethylamine and dimethylaminopyridine (DMAP) in DMF.

参考文献No.	288772
标题:	KCA-098
作者:	Rabasseda, X.; Casta馿r, J.; Mealy, N.
来源:	Drugs Fut 1995,20(3),235

合成路线图解说明: The cyclization of m-anisidine (I) with 2,4-dimethoxyphenylmalonic acid diethyl ester (II) in refluxing diphenyl ether (270-90 C) gives 3-(2,4-dimethoxyphenyl)-4-hydroxy-7-methoxyquinolin-2-(1H)-one (III), which is submitted to a new cyclization process in refluxing 47% aqueous HBr yielding 3,9-dihydroxybenzofuro[3,2-c]quinolin-6-(5H)-one (IV). Finally, this compound is esterified with N,N-dimethylcarbamoyl chloride (V) by means of triethylamine and dimethylaminopyridine (DMAP) in DMF.