Derivatives of coenzyme B12
Patent 4364939 Issued on December 21, 1982. Estimated Expiration Date: 
September 15, 2000. 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.
September 15, 2000. 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 3095413 3151116 3213082 3573276 InventorsAssigneeApplicationNo. 06/186831 filed on 09/15/1980US Classes:514/46, Adenosine or derivative536/26.4, Cobalamin nucleotides (e.g., vitamin B-12, etc.)536/26.41, Processes of preparing or labelling536/26.44, Cobalamin analogs (i.e., compounds wherein the benzimidazole ring system has been replaced by another organic ring structure, or compounds wherein cobalt has been removed or replaced by another metal, or is substituted by a group other than -OH or -CN)536/27.3AdenosylExaminersPrimary: Rizzo, Nicholas S.Attorney, Agent or FirmInternational ClassC07H 23/00 (20060101)Foreign Application Priority Data1976-11-25 FRAbstractNovel monoesters of cobamide derivatives of coenzyme B12 of the formula: ##STR1## wherein R is acyl of an organic carboxylic acid of 4 to 20 carbon atoms and Co is -(5,6-dimethyl-benzimidazolyl)-cobamide which is a mixture of the said monoesters having dibencozide type properties and a process for their preparation. |
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