Synonyms: 1H-Cyclobuta[3,4]cyclopenta[1,2-a]phenanthrene,16,21-cyclocholane deriv.; 1H-Cyclobuta[3,4]cyclopenta[1,2-a]phenanthrene,octadecahydro-4a,6a-dimethyl-7-propyl-, [4aS-(4aa,4bb,6aa,6bb,7a,8ab,9ab,9ba)]-; [4aS-(4aa,4bb,6aa,6bb,7a,8ab,9ab,9ba)]-Octadecahydro-4a,6a-dimethyl-7-propyl-1H-cyclobuta[3,4]cyclopenta[1,2-a]phenanthrene