2-sec-Butyl-4-{4-[4-(4-{[(2R,4S)-2-(2,4-dichlorophenyl)-2-(4H-1,2 ,4-triazol-4-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)-1-pipera zinyl]phenyl}-2,4-dihydro-3H-1,2,4-triazol-3-one