5,6- trans -25-Hydroxycholecalciferol: Vitamin D Analog Effective on Intestine of Anephric Rats

Abstract
A new compound, 5,6-trans-25-hydroxycholecalciferol, has been synthesized and tested for its biological activity. Like 1,25-dihydroxycholecalciferol, it stimulates intestinal calcium transport in anephric rats, whereas 25-hydroxycholecalciferol does not. But this analog has little if any activity in stimulating mobilization of calcium from the bone of anephric rats.