Patent ID: 7262023

Claim:
A microbiological process for the production of a 7α-substituted 11α-hydroxy steroids of formula 4,B wherein R 7 is P—Q, wherein P is a C 1 - to C 4 -alkylene, and Q is hydrogen, C 1 - to C 4 -alkyl- or C 1 - to C 4 -fluoroalkyl, and wherein P—Q is bonded via P to the steroid skeleton, R 10 is either in α- or β-position and is H, CH 3 or CF 3 , and R 13 is methyl or ethyl, comprising hydroxylating and oxidizing of a 7α-substituted steroid of formula 3,A, wherein R 7 , R 10 and R 13 are as indicated above, with use of a microorganism which is Aspergillus sp., Beauveria sp., Glomerella sp., Gnomonia sp., Haplosporella sp. or Rhizopus sp.