Azithromycin and derivatives as antiprotozoal agents
Patent 4963531 Issued on October 16, 1990. Estimated Expiration Date: 
August 16, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 16, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesN-Methyl 11-aza-10-deoxo-10-dihydro-erytromycin A, intermediates therefor 9-Aza-9-homoerythromycin compounds, pharmaceutical composition and therapeutic method 11-Methyl-11-aza-4-0-cladinosyl-6-0-desosaminyl-15-ethyl-7,1 3,14-trihydroxy-3,5,7,9,12,14-hexamethyl-oxacyclopentadecane-2-one and derivatives thereof Epimeric azahomoerythromycin A derivative, intermediates and method of use Patent #: 4526889 InventorApplicationNo. 359676 filed on 08/16/1988US Classes:514/29, The hetero ring has exactly 13 ring carbons (e.g., erythromycin, etc.)536/7.2, Erythromycin or derivative (e.g., oleandomycin, etc.)536/7.4Additional nitrogen containingExaminersPrimary: Rollins, John W.Assistant: Catchpole, W. Attorney, Agent or FirmInternational ClassesA61K 031/70A61K 031/71 AbstractA method of use of azithromycin or derivatives of azithromycin in the treatment of infection caused by Toxoplasma gondii in mammals is disclosed.Other References
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