Synonyms: Hygrolidin,21-O-de(3-carboxy-1-oxo-2-propenyl)-2-demethyl-2-methoxy-24-methyl-;Oxacyclohexadecane, hygrolidin deriv.; (-)-Bafilomycin A1; Bafilomycin A1; NSC381866; Oxacyclohexadeca-3,5,11,13-tetraen-2-one,8-hydroxy-16-[2-hydroxy-1-methyl-3-[tetrahydro-2,4-dihydroxy-5-methyl-6-(1-methylethyl)-2H-pyran-2-yl]butyl]-3,15-dimethoxy-5,7,9,11-tetramethyl-,[7R-[3Z,5E,7R*,8S*,9S*,11E,13E,15S*,16R*[1S*,2R*,3S*(2R*,4R*,5S*,6R*)]]]-