HRID1708790

反应详情

EQUATION

反应方程式

HRID 1708790 的结构方程式

PROCEDURE

实验过程

The procedure of Example 25 was repeated except that 2.6 mg (0.00667 mmole) of 21,21-dimethoxy-20-methylpregna-5,7-diene-1α,3β-diol was used in lieu of 4.3 mg of 20-(5,5-dimethyl-1,3-dioxan-2-yl)pregna-5,7-diene-1α,3β-diol to give 1.8 mg of 1α,3β-dihydroxypregna-5,7-diene-20-carbaldehyde (yield: 78%).