Calcium regulator. Preparation by reduction of Tachysterol. It is widely used for hypocalcemic hypoparathyroidism following surgical removal of parathyroids.
정의
ChEBI: A hydroxy seco-steroid that is 9,10-secoergosta-5,7,22-triene substituted by a hydroxy group at position 3. A synthetic analogue of vitamin D that acts a bone density conservation agent.
Purification Methods
Crystallise the sterol from 90% MeOH, UV: max at 242, 251 and 261nm (E1% 760, 1010 and 650) in EtOH. The acetate has m108-110o and [] +32.8o (CHCl3), UV: max at 242, 251 and 261nm (E 780, 910 and 600) in EtOH. The propionate has m 97-98o and [] +37o (CHCl3), UV: max 242, 251 and 261nm (E 750, 860 and 570) in EtOH. [Werder Hoppe Seyler's Z Physiol Chem 260 119 1939, Windaus et al. Justus Liebigs Ann Chem 499 1978 1932, Beilstein 6 III 2833, 6 IV 3994, 4161.]
