N-Methyl 11-aza-10-deoxo-10-dihydro-erytromycin A, intermediates therefor
Patent 4474768 Issued on October 2, 1984. Estimated Expiration Date: 
November 15, 2002. 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.
November 15, 2002. 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 References 3928387 Semi-synthetic oleandomycin derivatives - C8 modifications Erythromycylamine 11,12-carbonate and derivatives thereof 11-Aza-10-deoxo-10-dihydroerythromycin A and derivatives thereof as well as a process for their preparation Patent #: 4328334 InventorApplicationNo. 06/441981 filed on 11/15/1982US Classes:514/29, The hetero ring has exactly 13 ring carbons (e.g., erythromycin, etc.)536/7.4Additional nitrogen containingExaminersPrimary: Brown, Johnnie R.Assistant: Peselev, Elli Attorney, Agent or FirmInternational ClassC07H 17/00 (20060101)AbstractAntibacterial N-methyl 11-aza-10-deoxo-10-dihydroerythromycin A and pharmaceutically acceptable acid addition salts thereof, intermediates therefor, and processes for their preparation.Other References
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