antibiotic A447 D

antibiotic A447 C

Streptolydigin

cosmomycin C

3-[2-[3-[(2,4-dihydroxy-3,3-dimethylbutanoyl)amino]propanoylamino]ethylsulfanyl]-7-oxo-6-(1-sulfooxyethyl)-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid

methyl (4E,6E,8E,10E,12E,14Z,16Z)-3-(4-amino-3,5-dihydroxy-6-methyloxan-2-yl)oxy-19-[7-(4-aminophenyl)-5-hydroxy-7-oxoheptan-2-yl]-23,27,29,31,33,35,37-heptahydroxy-18-methyl-21,25-dioxo-20,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10,12,14,16-heptaene-3

Benz[a]anthracen-1(2H)-one, 3,4,6a,7,12,12a-hexahydro-6a,7,12-trihydroxy-8-methoxy-3-methyl-, (3R,6aR,7S,12R,12aR)-rel-(+)