Avilamycin

(2R,3S,4R,6S)-6-(((3aR,4R,4'R,5'S,6S,6'R,7aR)-6-(((2S,3R,4R,5S,6R)-2-(((2R,3S,4S,5S,6S)-6-(((2'R,3aR,3a'S,6R,6'S,7S,7aR,7'R,7a'R)-7-acetyl-7-hydroxy-7'-(isobutyryloxy)-6-methyloctahydro-3a'H-2,4'-spirobi[[1,3]dioxolo[4,5-c]pyran]-6'-yl)oxy)-4-hydroxy-5-methoxy-2-(methoxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-3-hydroxy-5-methoxy-6-methyltetrahydro-2H-pyran-4-yl)oxy)-4'-hydroxy-4,6',7a-trimethyloctahydro-3aH-spiro[[1,3]dioxolo[4,5-c]pyran-2,2'-pyran]-5'-yl)oxy)-4-hydroxy-2-methyltetrahydro-2H-pyran-3-yl 2,5-dichloro-4-hydroxy-6-methoxy-3-methylbenzoate