HRID1973730
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
Treatment of 3α-hydroxy-21-methylene-5α-pregnane-11,20-dione (240 mg) in acetone (15 ml) with thionicotinic acid (150 mg) for 4 hrs. in similar manner to that described in Example 27 gave title compound (220 mg) as a white foam [αD ] + 55.6° (c 1.01).