title: Novel derivatives of 3 alpha,7 alpha-dihydroxy-5 beta-cholan-24-oic acid (chenodeoxycholic acid) and 3 alpha,7 beta-dihydroxy-5 beta-cholan-24-oic acid (ursodeoxycholic acid).
abstract: Several 7-acyl cheno- and ursodeoxycholic acids were obtained in good yields starting from the corresponding cheno- and ursodeoxycholic acids, by a diacylation-selective hydrolysis procedure. A superior method for the synthesis of the 7-oleyl derivatives, by a selective acylation procedure, is also presented.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002635:Chenodeoxycholic Acid / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D003840:Deoxycholic Acid / Q000031:analogs & derivatives*; D014580:Ursodeoxycholic Acid / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D003840:Deoxycholic Acid; D002635:Chenodeoxycholic Acid; D014580:Ursodeoxycholic Acid