Rifamycins derivatives and preparation and pharmaceutical compos

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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2602393P, 514212, 514323, 514408, 514237, 514236, 514183, A61K 31395, C07D49808

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active

045622035

ABSTRACT:
The invention relates to new rifamycins derivatives endowed with antibiotic activity and process for their preparation.
The new rifamycins derivatives have the formula: ##STR1##

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