107537-65-5
7-exo-Cyano-7-endo-ethoxycarbonyl-2,5-diphenyl-3,4-diaza-2,4-norcaradiene
→
107470-88-2
7-endo-Cyano-7-exo-ethoxycarbonyl-2,5-diphenyl-3,4-diaza-2,4-norcaradiene