Document Type and Number:
Japanese Patent JPS5751383
Kind Code:
B2
Abstract:
Novel 1 alpha -hydroxy-24-dehydrovitamin D3 and its hydroxyl-protected derivatives; novel 1 alpha -hydroxy-24-dehydroprevitamin D3 and its hydroxyl-protected derivatives; and novel 1 alpha ,3 beta -dihydroxycholesta-5,7,24-triene or its hydroxyl-protected derivatives which are key intermediates for preparing the aforesaid compounds. Novel processes for preparing these compounds are also provided. 1 alpha -Hydroxy-24-dehydrovitamin D3 has a pharmacological action of controlling the calcium metabolism of warm-blooded animals, and is useful as a prophylactic or therapeutic pharmaceutical for vitamin D deficient disease and related diseases.
Application Number:
JP5945477A
Publication Date:
November 01, 1982
Filing Date:
May 24, 1977
Export Citation:
International Classes:
A61K31/59; A61P3/02; C07C67/00; C07C401/00; C07J9/00; C07J17/00; C07J31/00; C07J71/00