(1S,3S,7S,10R,11S,12S,16R)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(E)-2-[2-(hydroxymethyl)-4-thiazolyl]-1-methylvinyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione; [4S,7R,8S,9S,13R,14S,16S(E)]-13,14-Epoxy-4,8-dihydroxy-5,5,7,9-tetramethyl-16-[2-[2-(h