Preparation of new trifluoromethyl substituted Tri- and tetracyclic heterocycles with peganin skeleton from a methyl 3,3,3-trifluoropyruvate/2-aminobenzylamine adduct

Authors
Ondracek, Jan
Cejka, Jan
Paleta, Oldrich
Kvicala, Jaroslav
Dolensky, Bohumil