(2-{3-Butyl-5-oxo-4-[2'-(2-trityl-2H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-4,5-dihydro-[1,2,4]triazol-1-yl}-1-phenyl-ethoxy)-acetic acid ethyl ester

5-n-butyl-2,4-dihydro-2-(α-methylbenzyl)-4-<<2'-(N-trityltetrazol-5-yl)biphenyl-4-yl>methyl>-3H-1,2,4-triazol-3-one