Synonyms: Naphth[1',2':6,7]indeno[7a,1-b]azete,1'H-pregnano[14,15-b]azete deriv.; Naphth[1',2':6,7]indeno[7a,1-b]azete,10-ethyl-1,2,3,4,4a,5,6,6a,7,9,10,10a,11,12,12a,12b-hexadecahydro-10a,12b-dimethyl-,[6aR-(6aa,10a,10aa,12ab,12ba)]-; [6aR-(6aa,10a,10aa,12ab,12ba)]-10-Ethyl-1,2,3,4,4a,5,6,6a,7,9,10,10a,11,12,12a,12b-hexadecahydro-10a,12b-dimethylnaphth[1',2':6,7]indeno[7a,1-b]azete