658057-36-4

4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione,10-(3-butenyl)-7,11-dihydroxy-3-[2-(hydroxymethyl)-5-benzoxazolyl]-8,8,12,16-tetramethyl-, (1S,3S,7S,10R,11S,12S,16R)-