Vitamin D C-22 aldehydes. New key intermediates for the synthesis of side chain modified vitamin D analogues
作者:Andrzej Kutner、Kato L. Perlman、Rafal R. Sicinski、Mary E. Phelps、Heinrich K. Schnoes、Hector F. DeLuca
DOI:10.1016/s0040-4039(00)61826-9
日期:1987.1
VitaminD C-22 aldehyde and 1α-hydroxyvitamin D C-22 aldehyde were efficiently synthesized starting from the readily available 22,23-bisnorcholenic acid. The usefulness of the compounds as common intermediates for the synthesis of sidechain modified analogues of vitamins D2 and D3 has been demonstrated.
Probing the structural requirements for vitamin D3 inhibition of the hedgehog signaling pathway
作者:Albert M. DeBerardinis、Upasana Banerjee、Michele Miller、Steven Lemieux、M.K. Hadden
DOI:10.1016/j.bmcl.2012.05.037
日期:2012.7
A structure–activityrelationshipstudy to elucidate the structural basis for hedgehog (Hh) signaling inhibition by vitaminD3 (VD3) was performed. Functional and non-functional regions of VD3 and VD2 were obtained through straightforward synthetic means and their biological activity was determined in a variety of cell-based assays. Several of these compounds inhibited Hh signaling at levels comparable
[EN] 22-HALOACETOXY-HOMOPREGNACALCIFEROL ANALOGS AND THEIR USES<br/>[FR] ANALOGUES 22-HALOACÉTOXY-HOMOPRÉGNACALCIFÉROL ET LEURS UTILISATIONS
申请人:WISCONSIN ALUMNI RES FOUND
公开号:WO2012065050A1
公开(公告)日:2012-05-18
This invention discloses 22-haloacetoxy-homopregnacalciferol analogs and specifically 22-bromoacetoxy-homopregnacalciferol and pharmaceutical uses therefor. This compound exhibits relatively little calcemic activity and does not promote cellular differentiation of HL-60 leukemia cells, but rather kills the cells. This cell death activity is found in small cell lung carcinoma also, but not in prostate cancer cells. This compound thus causes specific cell death in the absence of changes in calcium levels and without general toxicity in an animal. Therefore it might serve as a useful therapy for treatment of some forms of cancer, such as leukemia and lung cancer.