130917-92-9Relevant articles and documents
The biotransformation of 5β-methyl-19-norpregn-9-enes by Cephalosporium aphidicola
Hanson, James R.,Hitchcock, Peter B.,Yildirim, Kudret
, p. 519 - 521 (2007/10/03)
The biotransformation of 3β-hydroxy-5β-methyl-19-norpregn-9-en- 20-one and the corresponding 3,20-dione by Cephalosporium aphidicola has been shown to give 10β-hydroxy-5β-methyl-19-norpregn-9(11)-ene-3,20-dione and related products.
SYNTHESIS OF 5-METHYL-19-NOR-5β-PREGN-9-ENE DERIVATIVES
Polman, Jiri,Kasal, Alexander
, p. 1783 - 1791 (2007/10/02)
3β,5,6β-Trihydroxy-5α-pregnan-20-one 3-pivalate (I) was converted into 3β,6β-dihydroxy-5-methyl-19-nor-5β-pregn-9-en-20-one 3-pivalate 5-acetate (II) under conditions of Westphalen rearrangement.Deoxygenation in the position 6β was effected by treatment o