25,26-Dihydroxyvitamin D3
IUPAC 名称
6-[(4Z)-4-{2-[(1E)-5-hydroxy-2-methylidenecyclohexylidene]ethylidene}-7a-methyl-octahydro-1H-inden-1-yl]-2-methylheptane-1,2-diol
描述
25,26-(OH)2D3 is a renal microsomal 25-OH-D3 metabolite, whose plasma concentration increases during vitamin D excess concomitantly with an increase in the concentration of lactone. This observation considered with the related structural features of 25,26-(OH)2D3 and lactone (both are oxidized at (C-26) suggested that 25,26(OH)2D3, a metabolite of unknown function, could be a precursor to lactone. In fact, it has been reported that functionalization of C-26 and subsequent lactone formation occurs exclusively in kidney. However, rigorous examination has unambiguously excluded 25S,26-(OH)2D3, the naturally occurring form as a significant lactone precursor. (PMID: 6286629) [HMDB]
异构
CC(CCCC(C)(O)CO)C1CCC2\C(CCCC12C)=C/C=C1\CC(O)CCC1=C
InChI标识符
InChI=1S/C27H44O3/c1-19-9-12-23(29)17-22(19)11-10-21-8-6-16-27(4)24(13-14-25(21)27)20(2)7-5-15-26(3,30)18-28/h10-11,20,23-25,28-30H,1,5-9,12-18H2,2-4H3/b21-10-,22-11+
键
QOWCBCXATJITSI-PANSPLHPSA-N