[EN] OPTIMIZED SYNTHESIS OF PURE, NON-POLYMORPHIC, CRYSTALLINE BILE ACIDS WITH DEFINED PARTICLE SIZE [FR] SYNTHÈSE OPTIMISÉE D'ACIDES BILIAIRES CRISTALLINS PURS ET NON POLYMORPHES AYANT UNE TAILLE DÉFINIE DE PARTICULE
作者:Ashok K. Batta、Subhash C. Datta、G.Stephen Tint、David S. Alberts、David L. Earnest、Gerald Salen
DOI:10.1016/s0039-128x(99)00064-1
日期:1999.11
dinorbile acids (23,24-dinor-5beta-cholan-22-oic acids, pregnane-20-carboxylic acids) in fair to good yields from norbile acidnitriles in one step by oxidative hydrolysis with oxygen in the presence of potassium-t-butoxide. The method results in stepwise overall removal of two carbon atoms in bile acid side chains in two steps. Dinorbile acids corresponding to several common bile acids have been prepared
Optimized Synthesis Of Pure, Non-Polymorphic, Crystalline Bile Acids With Defined Particle Size
申请人:Wilhelm Rudolf
公开号:US20140050791A1
公开(公告)日:2014-02-20
The present invention relates to a pure polymorph of Nor-UDCA or Bis-nor-UDCA, or of a pharmaceutically acceptable salt thereof. The inventions further provides a pharmaceutical composition comprising the polymorph of the invention, and a method for preparing the polymorph. The invention includes the pharmaceutical use of the polymorph or of the pharmaceutical composition of the invention.