1.3 - oxazino (5,6-c) rifamycines to anvendning as intermediate products for framstellning of 3 - iminometylderivat of rifamycin en and still for their framstellning

摘要

1,3-OXAZINO(5,6-C)RIFAMYCINS COMPOUNDS HAVING ANTIBACTERIAL ACTIVITY AND SUITABLE AS INTERMEDIATE COMPOUNDS FOR PRODUCING 3-IMINOMETHYL DERIVATIVES OF RIFAMYCIN SV. The 1,3-oxazino (5,6-c)rifamycin compounds are obtained in a process by which rifamycin S is reacted with a bis-(oxymethyl)-or with a bis-(alkoxymethyl)amine in an inert organic solvent.