Tetradecanoic acid (2S,3R,4R,5R,6R)-3-(6-benzyloxycarbonylamino-hexanoylamino)-6-{[2-((2R,3R,4R,5S)-3,4-bis-benzyloxy-2-benzyloxymethyl-5-tetradecanoylamino-piperidin-1-yl)-acetylamino]-methyl}-5-hydroxy-2-methoxy-tetrahydro-pyran-4-yl ester