Inventors:
Merle G. Wovcha - Kalamazoo MI
Frederick J. Antosz - Kalamazoo MI
John M. Beaton - Portage MI
Alfred B. Garcia - Kalamazoo MI
Leo A. Kominek - Portage MI
Assignee:
The Upjohn Company - Kalamazoo MI
International Classification:
C07B 2902
Abstract:
Valuable steroid intermediates, 9. alpha. -hydroxyandrost-4-ene-17. beta. -ol-3-one (9. alpha. --OH testosterone), 9. alpha. -hydroxy-3-ketobisnorchol-4-en-22-ol (9. alpha. --OH BN alcohol) and 9. alpha. ---hydroxy-3-ketobisnorchol-4-en-22-oic methyl ester (9. alpha. --OH BN acid methyl ester), prepared by microbiological conversion of steroids having 17-alkyl side chains of 8 to 10 carbons.