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

World Intellectual Property Organization Patent

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Sep 8, 2017
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Mar 2, 2017
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Mar 3, 2016

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Abstract

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	Address
BIONICE S L U	ESPARQUE TECNOLOGICO DE BOECILLO PARCELA 113 BOECILLO VALLADOLID 47151

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C07J:STEROIDS

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Inventor Name	Address
IGLESIAS RETUERTO JESUS MIGUEL	E-47151 BOECILLO - VALLADOLID
SANDOVAL RODRIGUEZ CELSO MIGUEL	E-47151 BOECILLO - VALLADOLID
HERRAIZ SIERRA IGNACIO	E-47151 BOECILLO - VALLADOLID
MESSINA IVANO	E-47151 BOECILLO - VALLADOLID

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2017149091

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

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

World Intellectual Property Organization Patent

PCTEP2017054952

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PCTEP2017054952

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