Process for the preparation of 3-iminomethyl derivatives of rifa

Details Process for the preparation of 3-iminomethyl derivatives of rifa Process for the preparation of 3-iminomethyl derivatives of rifa

1974-05-23

1976-06-15

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424244, 424248, C07D49804

Patent

active

039637050

ABSTRACT:
A process for the preparation in homogeneous phase and in quantitative yield of 3-iminomethyl derivatives of rifamycin SV useful as antibiotic agents. Rifamycin S is reacted in an organic solvent to give a solution of 1,3-oxazino-(5,6-c) rifamycins which is treated with an organic solvent at a pH from 4 to 6. The aqueous phase is discharged and the organic phase is treated with an amine under basic conditions, the desired derivatives being finally isolated from this organic phase according to usual techniques.

REFERENCES:
patent: 3342810 (1967-09-01), Maggi et al.

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