The molecule is a doubly-protected aminoglycoside composed of glucose deoxygenated at C-4 and C-6 and having a methyl substituent at C-2, a 3-hydroxy-3-methylbutanamide group at C-4, a benzoyl protecting group at C-3 and a benzyloxycarbonyl (Z)-protected aminoethyl group at C-1 It derives from a D-galactopyranose.
[(2R,3R,4S,5R,6S)-3-[(3-hydroxy-3-methylbutanoyl)amino]-5-methoxy-2-methyl-6-[2-(phenylmethoxycarbonylamino)ethoxy]oxan-4-yl] benzoate