Inventor

STRUB DIETRICH

CH2 patents

Patents

2 patents

US5204342AApr 20, 1993

Saturated tetracyclic nitrogen heterocycles

CIBA GEIGY CORP3 citations59

US5135930AAug 4, 1992

Hydrogenated nitrogen containing tetracycles having two nonadjacent lactam rings

CIBA GEIGY CORP2 citations59