2,3-dihexadecanoyloxypropoxy-[2-[[(2S)-3-methyl-2-[[(2S)-4-methyl-2-[1 -[(2R)-2-[[(2S)-2-(2-methylpropoxycarbonylamino)-3-phenyl-propanoyl]am ino]-3-naphthalen-2-yl-propanoyl]piperidine-4-carbonyl]oxy-pentanoyl]a mino]butanoyl]amino]ethoxy]phosphinic acid