【発明の名称】7α-アセチルチオステロイドの製法

Title:

【発明の名称】7α-アセチルチオステロイドの製法

Document Type and Number:

Japanese Patent JPS63501949

Kind Code:

A

Abstract:

A process for producing 7 alpha -acetylsteroids having the formula (I), in which R1, R2, R3 and R4 are hydrogen or (a) is the group (b) and (c) is the group (d). The process is characterized by the fact that a 3-oxo-17 alpha -pregna-4,6-dien-21,17-carbolacton having the formula (II), in which R3 and R4 have the meaning already described, is transformed with thioacetic acid in the presence of acids of Lewis.

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Inventors:

Nikis, Claus
Laurent, Henry

Application Number:

JP50002087A

Publication Date:

August 04, 1988

Filing Date:

November 28, 1986

Export Citation:

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Assignee:

Schier Ring Actien Gezershaft

International Classes:

C07J31/00; C07J53/00; C07J1/00; (IPC1-7): C07J31/00

Attorney, Agent or Firm:

Toshio Yano

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