Method for preparing 19-nor-4-androstene-3,17-dione

A technology of androstene and diketone, which is applied in the field of chemical preparation, can solve the problems of restricting industrial production, long synthesis route, and long production cycle, and achieve the effects of improving operation safety, short synthesis route and high product quality
CN106589033AInactive Publication Date: 2017-04-26ZHEJIANG XIANJU PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG XIANJU PHARMA
Publication Date
2017-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing 19-nor-4-androstene-3,17-dione. The method comprises the following steps: taking a compound 1 as an initial raw material, carrying out a hydrolysis reaction, a hydrogenation reaction and condensation reaction so as to obtain 19-nor-4-androstene-3,17-dione, wherein the reaction formula is as shown in the specification. According to the method disclosed by the invention, a high-purity 19-nor-4-androstene-3,17-dione product is obtained at the total molar yield of 83% or higher, and the method is low in cost, green, environmental-friendly and suitable for industrial production.
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Claims

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