The molecule is a macrolide antibiotic that is a semisynthetic analogue of concanamycin A, possessing an 18-membered lactone ring and a 6-membered oxane ring in which the hydroxy group at position 23 is glycosylated by a 4-O-carbamoyl-2,6-dideoxy-beta-D-arabino-hexopyranosyl residue. It is a macrolide antibiotic, a monosaccharide derivative, a carbamate ester, an enol ether, a tetrol and a semisynthetic derivative.
[(2R,3S,4R,6R)-6-[(2R,3S,4R,6R)-6-[(2S,3S,4S)-4-[(2R,3S,4E,6E,9R,10S,11S,12R,13R,14E,16Z)-11-ethyl-10,12-dihydroxy-3,17-dimethoxy-7,9,13,15-tetramethyl-18-oxo-1-oxacyclooctadeca-4,6,14,16-tetraen-2-yl]-3-hydroxypentan-2-yl]-3-methyl-2-[(E)-prop-1-enyl]oxan-4-yl]oxy-4-hydroxy-2-methyloxan-3-yl] carbamate