1 CAI Carbomycin a 1.000 2 JOS (2s,3s,4r,6s)-6-{[(2r,3s,4r,5r,6s)-6-{[(4r,5s,6s,7r,9r,10s,12e,14z,16r)-4-(acetyloxy)-10-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)oxacyclohexadeca-12,14-dien-6-yl]oxy}-4-(dimethylamino)-5-hydroxy-2-methyltetrahydro-2h-pyran-3-yl]oxy}-4-hydroxy-2,4-dimethyltetrahydro-2h-pyran-3-yl 3-methylbutanoate 0.918 3 6BQ Phosphorylated josamycin 0.833