PROCESS FOR PREPARING 11 -METHYLENE-18-METHYL-ESTR-4-EN-3, 17- DIONE, USEFUL AS INTERMEDIATE COMPOUND FOR THE SYNTHESIS OF MOLECULES HAVING A PHARMACOLOGICAL ACTIVITY

World Intellectual Property Organization Patent

APP PUB NO WO-2014037873-A1
SERIAL NO

PCTIB2013058248

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There is described a process for the industrial synthesis of 11-methylene-18- methyl-estr-4-en-3, 17-dione, a compound having the structure formula (I) depicted below: (Formula I) (I) useful as intermediate compound in the synthesis of the progestin compounds Desogestrel and Etonogestrel.

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Patent Owner(s)

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IND CHIMICA SRLITITALY MILAN

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Inventor(s)

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LENNA ROBERTO VIA ZARA 2 20010 S GIORGIO SU LEGNANO 20010
VANOSSI ANDREA I-22046 MERONE
MARIANI EDOARDO C/O CHIESI FARMACEUTICI S P A VIA PALERMO 26/A 43122 PARMA 43122

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