Synonyms: AC1LAFFU;Megalomycin C1 and C2;[(2S,3S,4R,6R)-4-acetyloxy-6-[[(3R,4S,5S,6R,7R,9R,11R,12R,13R,14R)-12-[(2S,4R,5R,6R)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-7,13-dihydroxy-3,5,7,9,11,13-hexamethyl-2,10-dioxo-oxacyclotetradec-4-yl]oxy]-2,4-dimethyloxan-3-yl] acetate; [(2S,3S,4R,6R)-4-acetyloxy-6-[[(3R,4S,5S,6R,7R,9R,11R,12R,13R,14R)-12-[(2S,4R,5R,6R)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-7,13-dihydroxy-3,5,7,9,11,13-hexamethyl-2,10-dioxo-oxacyclotetradec-4-yl]oxy]-2,4-dimethyloxan-3-yl] propanoate