C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 62/38 (2006.01) C07C 62/24 (2006.01) C07C 62/26 (2006.01) C07D 303/38 (2006.01) C07J 71/00 (2006.01) C07J 73/00 (2006.01)
Patent
CA 2051397
The present invention is an oxidative process for the conversion of 21-unsaturated progesterones (I) to the corresponding 3,5-secoandrost-5-one-3,17.beta.-dioic acids (II) by use or either ozone or an oxidizing agent, which are useful intermediates in the production of .DELTA.5-4-aza-17-carbonyl steroids (III) which are useful in production of 5.alpha.-4-aza amide (IV) pharmaceuticals. Also disclosed are the novel 21-unsaturated progesterones (I-C) and 3,5-secoandrost-5-one-3,17-.beta.dioic acids (II-C).
La présente invention est un procédé oxydatif pour la conversion de progestérones insaturées en 21 (I) en acides 3,5-sécoandrost-5-one-3,17-bêta-dioïques correspondants (II) par utilisation soit d'ozone soit d'un agent oxydant; il s'agit d'intermédiaires utiles pour la production de stéroïdes 5-delta-4-aza-17-carbonylique (III) utiles dans la production des produits pharmaceutiques 5-alpha-4-aza-amide (IV). On divulgue également de nouvelles progestérones insaturées en 21 (I-C) et des acides 3,5-sécoandrost-5-one-3,17-bêta-dioïques (II-C).
Macrae & Co.
Pharmacia & Upjohn Company
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