Synthesis and in vitro cholesterol dissolution by 23- and 24-phosphonobile acids
作者:P BABU、U MAITRA
DOI:10.1016/j.steroids.2005.03.008
日期:2005.9
A new class of 23- and 24-phosphonobile acids have been synthesized from bile acid and their in vitro cholesterol-dissolving efficiency have been estimated. 24-Phosphonobile salts (PBSs) are slightly more efficient in solubilizing cholesterol than 23-PBSs and natural bile salts. The cholesterol solubilizing power is influenced by the structure of PBSs, and is considerably reduced with an increase in the bulk pH. ((c) 2005 Elsevier Inc. All rights reserved.
First synthesis of phosphonobile acids and preliminary studies on their aggregation properties
作者:Uday Maitra、Ponnusamy Babu
DOI:10.1016/s0039-128x(03)00051-5
日期:2003.5
The synthesis of three novel phosphonobile acids from natural bile acids is reported. The CMC of phosphonodeoxycholic acid (PDCA) at pH 8.2 was found to be lower than that of the parent deoxycholic acid (DCA). PDCA micelles were also found to have higher microviscosity compared to DCA micelles, suggesting higher hydrophobicity and tighter packing in the interior of PDCA micelles. PDCA aggregated further to form an aqueous gel at pH 4. (C) 2003 Elsevier Science Inc. All rights reserved.