15-N-(1-adamantylmethyl)-16-N-[(2S)-1-[3,5-bis(tetrazol-1-yl)anilino]-1-oxo-3-phenylpropan-2-yl]tetracyclo[6.6.2.02,7.09,14]hexadeca-2,4,6,9,11,13-hexaene-15,16-dicarboxamide