Synonyms: 2,7-(Epoxypentadeca[1,11,13]trienimino)-6H-benzofuro[4,5-a]phenoxazine,rifamycin VIII deriv.;Rifamycin VIII,1',4-didehydro-1-deoxy-5'-(hexahydro-4-methyl-1H-1,4-diazepin-1-yl)-1,4-dihydro-3'-hydroxy-1-oxo-(9CI);1H-1,4-Diazepine,rifamycin VIII deriv.;