PROCESS AND NEW INTERMEDIATES FOR THE PREPARATION OF 11-METHYLENE STEROIDS

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United States of America Patent

APP PUB NO 20190092807A1
SERIAL NO

16081835

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a process for the preparation of 11-methylene steroids through selective olefination of the ketone at position 11. The resulting products are useful intermediates in the preparation of several pharmaceutically active agents, such as Etonogestrel and Desogestrel.

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Patent Owner(s)

Patent OwnerAddress
CRYSTAL PHARMA SAPARQUE TECNOLÓGICO DE BOECILLO P 113 BOECILLO - VALLADOLID E-47151

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HERRÁIZ, SIERRA Ignacio Boecillo - Valladolid, ES 3 0
IGLESIAS, RETUERTO Jesús Miguel Boecillo - Valladolid, ES 9 16
MESSINA, lvano Boecillo - Valladolid, ES 1 0
SANDOVAL, RODRÍGUEZ Celso Miguel Boecillo - Valladolid, ES 3 2

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