Low-calcemic, efficacious, 1α,25-dihydroxyvitamin D3 analog QW-1624F2-2: calcemic dose–response determination, preclinical genotoxicity testing, and revision of A-ring stereochemistry
作者:Gary H. Posner、Heung Bae Jeon、Amy Sarjeant、Edward S. Riccio、Rupa S. Doppalapudi、Izet M. Kapetanovic、Uttam Saha、Patrick Dolan、Thomas W. Kensler
DOI:10.1016/j.steroids.2004.09.004
日期:2004.10
Based on an X-ray crystal structure determination, the A-ring stereochemistry of hybridanalog QW-1624F2-2 (1alpha-hydroxymethyl-16-ene-24,24-difluoro-25-hydroxy-26,27-bis-homovitamin D3) is revised to be 1alpha-CH2OH-3beta-OH. This analog is shown to be approximately 80-100 times less calciuric than the natural hormone 1alpha,25-dihydoxyvitamin D3. This analog is shown also to be non-genotoxic in