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HRID1708754

反应详情

EQUATION

反应方程式

HRID 1708754 的结构方程式

REACTANTS

反应物

2
结构：COC(=O)O[C@@H]1C=C2C[C@@H](OC(C)=O)[C@@H]3O[C@@H]3[C@]2(C)[C@H]2CC[C@]3(C)[C@@H](C(C)C4OCC(C)(C)CO4)CC[C@H]3[C@H]12
HCID86745801

未命名化合物

结构：CC(=O)O[C@@H]1C=C2C[C@@H](OC(C)=O)[C@@H]3O[C@@H]3[C@]2(C)[C@H]2CC[C@]3(C)[C@@H](C(C)C4OCC(C)(C)CO4)CC[C@H]3[C@H]12
HCID86745803

未命名化合物

PRODUCTS

生成物

1
结构：CC(=O)O[C@@H]1CC2=CC=C3[C@@H]4CC[C@H](C(C)C5OCC(C)(C)CO5)[C@@]4(C)CC[C@@H]3[C@@]2(C)[C@H]2O[C@@H]12
HCID86745805

未命名化合物

收率 47.4%

PROCEDURE

实验过程

The procedure of Example 17 was repeated except that 42.3 mg (0.0789 mmole) of 7α-acetoxy-20-(5,5-dimethyl- 1,3-dioxan-2-yl)-1α,2α-epoxypregn-5-en-3β-yl acetate was used in lieu of 43.6 mg of 20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α,2α-epoxy-7α-methoxycarbonyloxypregn-5-en-3β-yl acetate to give 17.6 mg of 20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α,2α-epoxypregna-5,7-dien-3β-yl acetate. In addition, 14.0 mg of 7α-acetoxy-20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α, 2α-epoxypregn-5-en-3β-yl acetate was recovered. The yield of 20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α,2α-epoxypregna-5,7-dien-3β-yl acetate was 70% based on consumed 7α-acetoxy-20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α,2α-epoxypregn-5-en-3β-yl acetate. The 1H-NMR spectrum of the product 20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α,2α-epoxypregna-5,7-dien-3β-yl acetate was in agreement with that of the 20-(5,5-dimethyl-1,3-dioxan-2-yl)-1α ,2α-epoxypregna-5,7-dien-3β-yl acetate obtained in Example 17.