tert-butyl (5S,6R)-5-[(2S)-2-[(2R)-3-[(2R)-2-tert-butoxycarbonylamino-3-(3-chloro-4-methoxyphenyl)propionylamino]-2-methylpropionyloxy]-4-methylpentanoyloxy]-6-methyl-8-phenylocta-2(E),7(E)-dienoate

3,5-bis-(tert-butyl-dimethyl-silanyloxy)-2-methyl-hept-6-enoic acid 5-(4-methoxy-benzyloxy)-2,4-dimethyl-1-(1-methyl-allyl)-pentyl ester