PMID: 21795053

Authors:

Kashiwagi H, Ono Y, Shimizu K, Haneishi T, Ito S, Iijima S, Kobayashi T, Ichikawa F, Harada S, Sato H, Sekiguchi N, Ishigai M, Takahashi T

Title:

Novel nonsecosteroidal vitamin D(3) carboxylic acid analogs for osteoporosis, and SAR analysis.

Journal:

Bioorg Med Chem. 2011 Aug 15;19(16):4721-9. Epub 2011 Jul 8.

Abstract:

Novel vitamin D(3) analogs with carboxylic acid were explored, focusing on a nonsecosteroidal analog, LG190178, with a bisphenyl skeleton. From X-ray analysis of these analogs with vitamin D receptor (VDR), the carboxyl groups had very unique hydrogen bonding interactions in VDR and mimicked 1alpha-hydroxy group and/or 3beta-hydroxy group of 1alpha,25-dihydroxyvitamin D(3). A highly potent analog, 6a, with good in vitro activity and pharmacokinetic profiles was identified from an SAR study. Compound 6a showed significant prevention of bone loss in a rat osteoporosis model by oral administration.