Process for the preparation of aqueous solutions of potentiated sulfonamides
Patent 4599416 Issued on July 8, 1986. Estimated Expiration Date: 
July 8, 2003. 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.
July 8, 2003. 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.InventorAssigneeApplicationNo. 06/414694 filed on 09/03/1982US Classes:544/296, Plural 1,3-diazine rings544/224, The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.)544/295, Plural diazine rings544/297, Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen544/324, Additional hetero ring which is unsaturated544/325, Substituent on 5-position contains carbocyclic ring544/3361,4-diazinesExaminersPrimary: Hollrah, Glennon H.Assistant: Turnipseed, James H. Attorney, Agent or FirmInternational ClassesA61K 31/635 (20060101)A61K 31/63 (20060101) Foreign Application Priority Data1981-09-23 CHAbstractAqueous solutions of antibacterially active sulfonamides and sulfonamide potentiators, which are suitable for parenteral administration and which contain no organic solvent, are prepared by reacting a sulfonamide RH with an aldehyde R1 CHO to give a compound of the formula R1 CH(R)2 and dissolving said compound in water together with the sulfonamide potentiator.Other References
Field of SearchThe six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.)Additional hetero ring which is unsaturated Substituent on 5-position contains carbocyclic ring 1,4-diazines Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen Plural diazine rings Plural 1,3-diazine rings |
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