Synonyms: | 1H-Cyclopenta[5,6]naphtho[1,2-g]quinazoline,pregn-2-eno[3,2-d]pyrimidine deriv.;1H-Cyclopenta[5,6]naphtho[1,2-g]quinazoline, 1-ethyl-2,3,3a,3b,4,5,5a,6,11,11a,11b,12,13,13a-tetradecahydro-11a,13a-dimethyl-,[1S-(1a,3ab,3ba,11aa,11bb,13aa)]-; [1S-(1a,3ab,3ba,11aa,11bb,13aa)]-1-Ethyl-2,3,3a,3b,4,5,5a,6,11,11a,11b,12,13,13a-tetradecahydro-11a,13a-dimethyl-1H-cyclopenta[5,6]naphtho[1,2-g]quinazoline |