Synonyms: 9,19-Cyclo-5a,9b-pregn-17(20)-en-16-one,3b-(dimethylamino)-4,4,14-trimethyl- (7CI,8CI);16H,19H-Cyclopropa[9,10]cyclopenta[a]phenanthrene,9,19-cyclopregn-17(20)-en-16-one deriv.; Cyclobuxophylline; CyclobuxophyllineK; N,N-Dimethylcyclobuxophylline O; N-Methylbuxenone; N-Methylbuxenone M;N-Methylcyclobuxophyllinine M