(4R,5S)-3-[(E)-(2R,3S,5R,6R,10S,12S,13R,14S,16R)-6-Allyl-16-[1,3]dithian-2-yl-3-hydroxy-12,14-dimethoxy-5-(4-methoxy-benzyloxy)-2,8,10-trimethyl-13-triisopropylsilanyloxy-heptadec-7-enoyl]-4-methyl-5-phenyl-oxazolidin-2-one