6,8-dibromo-2-phenyl-1-aza-azulene

2-[1-Amino-1-phenyl-meth-(Z)-ylidene]-3-methylene-succinic acid dimethyl ester

8-methyl-2-phenyl-1,8-dihydrocyclohepta[b]pyrrole

8-butyl-2-phenyl-1,8-dihydrocyclohepta[b]pyrrole