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US 5,225,335 AGranted
1,2-dehydrogenation of steroidal 21-esters with Arthrobacter simplex or Bacterium cyclooxydans
AssigneeThe Upjohn Company
InventorsLeo A. Kominek, Holly J. Wolf, Paula S. Steiert
Life of this patent
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Abstract
The present invention involves processes for 1,2-dehydrogenation of .DELTA..sup.4 -3-keto C.sub.21 -hemiester steroids of formula (I) ##STR1## with Arthrobacter simplex or Bacterium cyclooxydans to produce the corresponding .DELTA..sup.1,4 -3-keto C.sub.21 hemiester of formula (II) ##STR2## or free alcohol thereof with improved yields. The advantage is that the processes utilize higher substrate concentrations and give shorter reaction times than previously were known.
Claims21
A process for the production of a .DELTA..sup.1,4 -3-keto 21-hemiester steroid of formula (II)
- where
- (B-I) R.sub.6 is .dbd.CH.sub.2 or .alpha.-R.sub.6-1 :.beta.-H where R.sub.6-1 is --H, --F or --CH.sub.3, R.sub.7 is .alpha.-H:.beta.-H;
- (B-II) R.sub.6 is R.sub.6-3 :R.sub.6-4 and R.sub.7 is R.sub.7-3 :R.sub.7 -4 where one of R.sub.6-3 and R.sub.6-4 taken together with one of R.sub.7-3 and R.sub.7-4 form a second bond between C.sub.6 and C.sub.7, the other of R.sub.6-3 and R.sub.6-4 is --CH.sub.3 and the other of R.sub.7-3 and R.sub.7-4 is --H;
- (C-I) R.sub.11 is .alpha.-R.sub.11-1 :.beta.-R.sub.11-2 where one of R.sub.11-1 and R.sub.11-2 is taken together with R.sub.9 to form a second bond between C.sub.9 and C.sub.11, and the other of R.sub.11-1 and R.sub.11-2 is --H;
- (C-II) R.sub.9 is --H, --F, --Cl or --Br and R.sub.11 is .dbd.O or .alpha.-R.sub.11-3 :.beta.-R.sub.11-4 where one of R.sub.11-3 and R.sub.11-4 is --H and the other of R.sub.11-3 and R.sub.11-4 is --H or --OH;
- (CIII) R.sub.11 is .alpha.-H:.beta.-O--, where .beta.-O-- is taken together with R.sub.9 to form an epoxide between C.sub.9 and C.sub.11 in the .beta.- configuration;
- (D-I) R.sub.16 is R.sub.16-1 :R.sub.16-2 and R.sub.17 is R.sub.17-1 :R.sub.17-2, where one of R.sub.16-1 and R.sub.16-2 is --H and the other taken together with one of R.sub.17-1 or R.sub.17-2 forms a second bond between C.sub.16 and C.sub.17 and the other of R.sub.17-1 and R.sub.17-2 is --CO--CH.sub.2 --O--R.sub.21 where R.sub.21 is --H, --CO--(X.sub.1)--COOR.sub.21-1, where X.sub.1 is --CH.dbd.CH-- and --(CH.sub.2).sub.n1 -- where n.sub.1 is 1-8 and where R.sub.21-1 is --H or a cation;
- (D-II) R.sub.16 is .alpha.-H:.beta.-H, and where R.sub.17 is .dbd.CH--CO.sub.2 --O--R.sub.21 where R.sub.21 is as defined above;
- (D-III) R.sub.16 is .dbd.CH.sub.2 or .alpha.-R.sub.16-5 :.beta.-R.sub.16-6 where R.sub.16-5 is --H, --OH or --CH.sub.3, R.sub.16-6 is --H or --CH.sub.3 with the proviso that one of R.sub.16-5 or R.sub.16-6 is --H, and where R.sub.17 is .alpha.-R.sub.17-5 :.beta.-CO--CH.sub.2 --O--R.sub.21 where R.sub.17-5 is --H or --OH, where R.sub.21 is as defined above, which comprises contacting a .DELTA..sup.4 -3-keto 21-hemiester steroid of formula (I) ##STR4## where (D-I) R.sub.16 is R.sub.16-1 :R.sub.16-2 and R.sub.17 is R.sub.17-1 :R.sub.17-2, where one of R.sub.16-1 and R.sub.16-2 is --H and the other taken together with one of R.sub.17-1 or R.sub.17-2 forms a second bond between C.sub.16 and C.sub.17 and the other of R.sub.17-1 and R.sub.17-2 is --CO--CH.sub.2 --O--CO--(X.sub.1)--COOR.sub.21-1, where X.sub.1 and R.sub.21-1 are as defined above;
- (D-II) R.sub.16 is .alpha.-H:.beta.-H, and where R.sub.17 is .dbd.CH--CH.sub.2 --O--CO--(X.sub.1)--COOR.sub.21-1 where X.sub.1 and R.sub.21-1 are as defined above;
- (D-III) R.sub.16 is .dbd.CH.sub.2 or .alpha.-R.sub.16-5 :R.sub.16-6 where R.sub.16-5 is --H, --OH or --CH.sub.3, R.sub.16-6 is --H or --CH.sub.3 with the proviso that one of R.sub.16-5 or R.sub.16-6 is --H, and where R.sub.17 is .alpha.-R.sub.17-5 :.beta.-CO--CH.sub.2 --O--CO--(X.sub.1)--COOR.sub.21-1 where R.sub.17-5 is --H or --OH and where X.sub.1 and R.sub.21-1 are as defined above, and where R.sub.6, R.sub.0 and R.sub.11 are as defined above, with the Arthrobacter simplex, Bacterium cyclooxydans, or the steroid .DELTA..sup.2 -dehydrogenase therefrom.
8 more elements
Dependencies are inferred from the claim text.