ethyl 4-(2-furoyl)piperazin-1-ylformimidate hydrochloride

2-氨基-4,5-二甲氧基苯腈

4-(4-amino-6,7-dimethoxy-quinazolin-2-yl)-piperazine-1-carbonitrile

4-amino-2-(4-ethoxycarbonyl-1-piperazinyl)-6,7-dimethoxy-quinazoline

呋喃甲酰氯