Calcitriol Derivatives with Two Different Side Chains at C-20. II. Diastereoselective Syntheses of the Metabolically Produced 24(R)-Hydroxygemini
摘要:
Vitamin D derivatives containing two side chains emanating at C-20 are known as gemini. We have recently synthesized two gemini which are related to calcitriol and 19-norcalcitriol containing two identical side chains. The metabolism of these species involves 24(R)hydroxylation on one of the side chains. To determine the outcome of this diastereospecific transformation, we synthesized both C-20 epimeric pairs containing the 24(R)-hydroxy group in the gemini and 19-norgemini series. On the basis of the availability of these reference compounds, it was shown that the metabolic hydroxylation occurred at the pro-R side chain in both gemini compounds. In comparison to the parent compounds, the 24-hydroxygemini required higher doses to increase blood calcium levels in mice and to suppress INF-gamma release in MLR.
GEMINI VITAMIN D3 COMPOUNDS AND METHODS OF USE THEREOF
申请人:Adorini Luciano
公开号:US20080280859A1
公开(公告)日:2008-11-13
The invention provides Gemini vitamin D
3
compounds, methods for using the compounds to treat vitamin D3 associated states and pharmaceutical compositions containing the compounds.
[EN] USE OF VITAMIN D COMPOUNDS FOR THE PREVENTION OR TREATMENT OF CHRONIC PROSTATITIS<br/>[FR] UTILISATION DE COMPOSES DE VITAMINE D POUR LA PREVENTION OU LE TRAITEMENT DE LA PROSTATITE CHRONIQUE
申请人:BIOXELL SPA
公开号:WO2006035075A1
公开(公告)日:2006-04-06
The use of a vitamin D compound in the prevention or treatment of chronic prostatitis and related methods, pharmaceutical formulations and kits.