24-Nor-5beta-chol-22-enes derived from the major bile acids by oxidative decarboxylation.
The preparation of 24-nor-5beta-chol-22-enes from formyloxy-5beta-cholanic acids by oxidative decarboxylation with lead tetraacetate is described. NMR data is presented with other physical constants for the norcholenes derived from cholic, chenodeoxycholic, ursodeoxycholic, hyodeoxycholic, and deoxycholic acids. The facile synthesis of these norcholenes demonstrates the applicability of the formyloxy protecting group to oxidative decarboxylations in the bile acid series.
D001647:Bile Acids and Salts; D002770:Cholenes / Q000138:chemical synthesis*; D003653:Decarboxylation; D009654:Norsteroids / Q000378:metabolism; D010084:Oxidation-Reduction
D001647:Bile Acids and Salts; D002770:Cholenes; D009654:Norsteroids