KRM 1648

RIFALAZIL

3'-Hydroxy-5'-(4-isobutylpiperazinyl)benzoxazinorifamycin

1-Deoxy-1'-dehydro-1-oxo-3'-hydroxy-5'-[4-(2-methylpropyl)piperazino]rifamycin VIII

5,12-Dihydroxy-2,4-dimethyl-10-[4-(2-methyl-propyl)-l-piperazinyl]-2,7-[oxy(5-acetoxy-7,9-dihydroxy-3-methoxy-4,6,8,10,14-pentamethyl-15-oxo-l,ll,13-pentadecatriene-l,15-diyl)imino]-6H-benzofuro[4,5-a]phenoxazine-l(2H),6-dione