3-hydrazinomethyleneamino-9-phenyl-7-(2-thienyl)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine-4(3H)-one

3-Amino-4-phenyl-6-thiophen-2-yl-thieno[2,3-b]pyridine-2-carbonyl azide

3-Amino-4-phenyl-6-thiophen-2-yl-thieno[2,3-b]pyridine-2-carboxylic acid [1-(4-methoxy-phenyl)-meth-(E)-ylidene]-hydrazide

N-(4-Oxo-9-phenyl-7-thiophen-2-yl-4H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-3-yl)-formimidic acid ethyl ester

2-[1-(4-Chloro-phenyl)-meth-(E)-ylidene]-4-phenyl-6-thiophen-2-yl-thieno[2,3-b]pyridin-3-one