Wu Lihon, Cspc Zhongqi
2014
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Journal
Chinese Journal of Pharmaceuticals
Abstract
To perform the quality control of the gefitinib, four related substances recorded in quality specifi cations were prepared, and their structures were confi rmed by 1H NMR, 13C NMR and MS. These substances were N-(3-chloro-4-fluorophenyl)-7-methoxy-6-[3-(morpholin-4-yl)propoxy]-N-[3-(morpholin-4-yl)propyl)quinazolin-4-amine(A), N-(4-chloro-3-fl uorophenyl)-7-methoxy-6-[3-(morpholin-4-yl)propoxy]quinazolin-4-amine(B), 7-methoxy-6-[3-(morpholin-4-yl)propoxy]quinazolin-4(3H)-one(C), and N-(3,4-dichlorophenyl)-7-methoxy-6-[3-(morpholin-4-yl)propoxy]quinazolin-4-amine(D).