NEOSPIRAMYCIN I

NEOSPIRAMYCIN I STANDARD

4A-O-De(2,6-dideoxy-3-C-Methyl-α-L-ribo-hexopyranosyl)-9-O-[(2R,5S,6R)-5-(diMethylaMino)tetrahydro-6-Methyl-2H-pyran-2-yl]leucoMycin V