[4aR-[4a?,6a?,7?(R*),9a?,11?(3S*,5R*)]]-11-(3,5-Dihydroxy-2-methyl-1-cyclohexen-1-yl)-4a,6,6a,7,8,9,9a,11-octahydro-7-(5-hydroxy-1,5-dimethylhexyl)-6a-methyl-2-phenyl-1H,5H-cyclopenta[f][1,2,4]triazolo[1,2-a]cinnoline-1,3(2H)-dione; Triazoline adduct of Pre-calcitriol
