. "1-(4-Chloro-benzyl)-2-[2,2-dimethyl-3-(1H-tetrazol-5-yl)-propyl]-4-methyl-6-(5-phenyl-pyridin-2-ylmethylsulfanyl)-4,5-dihydro-1H-3-thia-1-aza-acenaphthylene" . "53" . . . . .