Chemical Name: (13S)-13-ethyl-11-methylene-1,4,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17(2H)-one
Synonym: 6-hydroxy-7-methoxyquinazolin-4(1H)-one
Smile: O=C1CCC([C@]1(CC)C2)C3CC=C4CC5(OCCO5)CCC4C3C2=C