263711-70-2
Octanoic acid (E)-(1S,5S,9S,11S,15R,19R,21S,24S)-19-((R)-1-benzyloxy-ethyl)-11-tert-butyl-1,15-dihydroxy-23-[1-methoxycarbonyl-meth-(E)-ylidene]-2,2-dimethyl-13,17-dioxo-6,12,18,25,26-pentaoxa-tricyclo[19.3.1.15,9]hexacos-3-en-24-yl ester