A new solid form of mesoprogestin 11β- 4E- (hydroxyiminomethyl) -phenyl -17α-methoxymethyl-17β-methoxy-estradi-4,9-dien-3-one

摘要

Nonsolvated crystalline 11beta -(4-((E)-hydroxyiminomethyl)phenyl)-17alpha -methoxymethyl-17beta -methoxy-4,9-estradien-3-one (I) is new. An independent claim is also included for a process for preparing (I). ACTIVITY : Gynecological. MECHANISM OF ACTION : Progesterone receptor ligand.