(E)-(1R,9S,12R,18S,19S,20S,21S,23R)-1-Hydroxy-12-[(E)-2-((1R,3R,4R)-4-hydroxy-3-methoxy-cyclohexyl)-1-methyl-vinyl]-18-isopropyl-19,21-dimethoxy-13,13,23-trimethyl-11,17,24-trioxa-4-aza-tricyclo[18.3.1.04,9]tetracos-14-ene-2,3,10,16-tetraone