Indeno[4,5-b]azepine-1(2H)-carboxylic acid,5-[[[3,5-bis(trifluoromethyl)phenyl]methyl][2-(2-hydroxyethyl)-2H-tetrazol-5-yl]amino]-3,4,5,8,9,10-hexahydro-7-methyl-, 1-methylethyl ester, (5S)-