(2011/08/06)
5-bromo-4-(2-fluoro-4-nitrophenoxy)pyrrolo[1,2-b]pyridazine
4-(2-fluoro-4-nitrophenoxy)pyrrolo[1,2-b]pyridazine
4-(t-butyldimethylsilyloxy)pyrrolo[1,2-b]pyridazine
1,4-dihydro-4-oxopyrrolo<1,2-b>pyridazine-3-carboxylic acid
diethyl (1-pyrrolyl)aminomethylenepropanedioate