4-O-(Carboxymethyl)-8-deoxyrifamycin

4-O-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl) 1-O-(2-methylpropyl) 2-phenylbutanedioate,oxalic acid

Rifamycin,4-O-(carboxymethyl)-21-deoxy-20-hydroxy-21-oxo-

Rifamycin O

1-O-cyclohexyl 4-O-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl) 2-phenylbutanedioate,oxalic acid

rifamycin B

2-acetamido-2-deoxy-3,6-di-O-acetyl-4-O-carboxymethyl-β-D-glucopyranosyl azide