US 5,350,764 AGranted

Anticoccidial and growth promoting polycyclic ether antibiotic

AssigneePfizer Inc.

InventorsJohn P. Dirlam, Hiroshi Maeda, Junsuke Tone

Life of this patent

Estimating the term…

Abstract

An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Actinomadura sp. ATCC 55027. This novel antibiotic is useful as an anticoccidial in poultry, in the prevention and treatment of swine dysentery and as a growth promotant in cattle and swine.

Claims11

Dependent claims

A compound of the formula ##STR2## or a pharmaceutically acceptable cationic salt thereof, wherein Me represents CH.sub.3 and Et represents CH.sub.2 CH.sub.3.

Dependencies are inferred from the claim text.

Facts

Application: 08/030,055Filed 12 Mar 1993 · continuation
Priority: 1 Oct 1990
Granted: 27 Sep 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

C07D 407/04
Containing two hetero rings: directly linked by a ring-member-to-ring-member bond
A61P 31/04
Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics: antibacterial agents
A61P 33/02
Antiparasitic agents: antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
C12N 1/205
Bacteria; Culture media therefor: bacterial isolates

Family

Serial590,891Parent of this continuation · filed 1 Oct 1990
US 5,350,764 AThis patent

From the US filing history. Foreign family members aren’t listed.

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