Method of preparing derivatives of rifamycin S

Details Method of preparing derivatives of rifamycin S Method of preparing derivatives of rifamycin S

1975-10-16

1977-02-08

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424244, C07D49808

Patent

active

040071693

ABSTRACT:
Method of preparing 3-amino-Rifamycin S and 3-azido-Rifamycin S and 25-desacetyl derivatives thereof having antibiotic activity. According to such a method, Rifamycin S is dissolved in dipolar aprotic solvent and reacted with sodium azide.

REFERENCES:
patent: 3542765 (1970-11-01), Bickel et al.
patent: 3865812 (1975-02-01), Cricchio et al.
patent: 3900465 (1975-08-01), Cricchio et al.
Kump et al., "Helv. Chim. Acta," vol. 56, No. 7, (1973), pp. 2348-2377.
Fieser et al., "J. Am. Chem. Soc.," vol. 57, pp. 1482-1484, (1935).

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