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US 4,283,527 AGranted
Erythromycylamine 11,12-carbonate and derivatives thereof
AssigneePfizer Inc.
InventorFrank C. Sciavolino
Life of this patent
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Abstract
Erythromycylamine 11,12-carbonate, its 2'-acetyl-, 2'-propionyl- and 2'-(3-carbethoxypropionyl)-derivatives; N-(carbobenzoxy)-derivatives and pharmaceutically acceptable acid addition salts of said compounds; their use as antibacterial agents; and processes for their preparation.
Claims11
A compound of formula I ##STR4## wherein R.sub.1 is hydrogen or N-carbobenzoxy;
- and R.sub.2 is hydrogen, acetyl, propionyl or 3-carbethoxypropionyl;
- or the pharmaceutically acceptable acid addition salts of those compounds wherein R.sub.1 is hydrogen.
Dependencies are inferred from the claim text.