17α-Acetoxy-pregn-4,6-diene-3,20-dione (1), C23H30O4, was synthesized from the commercially available 17α-acetoxyprogesterone. X-ray diffraction analysis of (1) demonstrated that it consists of four rings, three six-membered rings (A, B and C) and one-five-membered ring (D). A, B, C and D rings occur in an envelope; half chair and chair; and half chair conformations, respectively. The crystal of 17α-acetoxy-pregn-4,6-diene-3,20-dione is in orthorhombic crystal system with space group P212121, lattice constants: a = 10.843(1), b = 11.744(1), c = 15.815(2)Å, V = 2013.9(4)Å3, Dx = 1.222 g/cm3 and Z = 4. The molecules in the crystal are stabilized by C–H···O interactions and van der Waals forces. 17α-acetoxy-pregn-4,6-diene-3,20-dione (1) was synthesized. Compound 1 exhibited a high antiandrogenic effect and could be considered as a potential drug for the treatment of prostate cancer. The crystal structure of (1) was obtained by determination of X-ray diffraction from suitable single crystals.
17α-乙酰氧基-孕甾-4,6-二烯-3,20-二酮(1),
C23H30O4,是从市售的17α-乙酰氧基
孕酮合成的。X射线衍射分析表明,(1)由四个环组成,其中三个六元环(A, B和C)和一个五元环(D)。A, B, C和D环分别呈现信封型,半椅型和椅型构象。17α-乙酰氧基-孕甾-4,6-二烯-3,20-二酮的晶体属于正交晶系,空间群P212121,晶格常数: a = 10.843(1), b = 11.744(1), c = 15.815(2)Å, V = 2013.9(4)Å3, Dx = 1.222 g/cm3, Z = 4。晶体中的分子通过C-H···O相互作用和范德华力稳定。17α-乙酰氧基-孕甾-4,6-二烯-3,20-二酮(1)被合成。化合物1显示出很强的抗雄激素作用,可以考虑作为治疗前列腺癌的潜在药物。通过从合适的单晶获得X射线衍射确定,得到了(1)的晶体结构。