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HRID247540

反应详情

EQUATION

反应方程式

HRID 247540 的结构方程式

REACTANTS

反应物

2
结构：[K+].[OH-]
HCID14797

Potassium hydroxide

HKO

结构：CC(=O)OCC(=O)[C@@]1(O)CC[C@H]2[C@@H]3CCC4=CC(=O)CC[C@]4(C)C3=CC[C@@]21C
HCID111332

Anecortave acetate

C23H30O5

PRODUCTS

生成物

1
结构：C[C@]12CCC(=O)C=C1CC[C@@H]1C2=CC[C@@]2(C)[C@H]1CC[C@]2(O)C(=O)CO
HCID7074810

Anecortave

C21H28O4

收率 89.8%

AUXILIARIES

试剂、催化剂与溶剂

2
结构：CO
溶剂HCID887

Methanol

CH4O

结构：ClCCl
溶剂HCID6344

Dichloromethane

CH2Cl2

PROCEDURE

实验过程

At room temperature, 1.5 g of 21-acetoxy-17-hydroxy-4,9(11)-pregnadiene-3,20-dione in 40 ml of methanol is agitated for 2 hours at room temperature with 15 ml of 0.2N methanolic potassium hydroxide solution. The reaction mixture is introduced into ice water. The precipitated product is suctioned off, dissolved in methylene chloride, washed with water, and dried over sodium sulfate, thus obtaining 1.2 g of 17,21-dihydroxy-4,9(11)-pregnadiene-3,20-dione; mp 248.2° C.

WORKUP

后处理

  1. washwashed with water
  2. dry with materialdried over sodium sulfate