4’,12’,16’,18’,20’,22’-heptamethyl--221’-acetate | 4-O-(CARBOXYMETHYL)-1-DEOXY-1,4-diHYDRO-4-HYDROXY-1-OXO-G-LACTONE |
4-O-Carboxymethyl-1-deoxy-1,4-dihydro-4-hydroxy-1-oxorifamycin γ-lactone | 4-o-(carboxymethyl)-1-deoxy-1,4-dihydro-4-hydroxy-1-oxo-rifamycigamma-la |
2,1-b)furan)-1’,4,6’,11’(2’h)-tetrone,5’,17’,19’,21’-tetrahydroxy-23’-methoxy | RifaMycin,4-O-(carboxyMethyl)-1-deoxy-1,4-dihydro-4-hydroxy-1-oxo-, g-lactone |