APls
Intermediates
4-Androstenedione (4-AD) 1,4-Androstadienedione (1,4-ADD) Altrenogest Intermediate ( 3,3-dimethoxy-17a-allylestra-5(10),11-diene-17b-ol ) Spirolactone Intermediate (17b-hydroxy-3-oxo-17a-pregn-4-ene-21-carboxylic acid-gmma-lactone)