220332-76-3

desogestrel

11-methylene-18a-homo-estr-4-en-17-one

(+)-13β-ethyl-17β-hydroxy-11-methylenegona-4-en-3-one

(+)-(1S,3aS,4S,7aS)-3a,4,7,7a-tetrahydro-1-(tert-butyldimethylsiloxy)-6-carbomethoxy-7a-ethyl-5-hydroxy-4-(2-(3-methoxyphenyl)ethyl)indane