Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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US Patent 6686497 - Synthesis of 3-ethoxy-4-ethoxycarbonyl phenyl acetic acid, a key acid synthon of repaglinide
US Patent Issued on February 3, 2004
Estimated Patent Expiration Date:
September 20, 2022Estimated 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.
Estimated Patent Expiration Date:
September 20, 2022Estimated 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.AbstractThe present invention relates to a new and industrially advantageous process for the preparation of 3-ethoxy-4-ethoxy-carbonyl-phenyl acetic acid. This compound is a key intermediate for the synthesis of Repaglinide, an oral hypoglycemic agent.Other References
| InventorsAssigneeApplicationNo. 130579 filed on 09/20/2002US Classes:560/64, Ester function attached directly to a ring546/234Plural carbocyclic rings containingField of Search560/64, Ester function attached directly to a ring546/234, Plural carbocyclic rings containing514/326, The additional ring is a hetero ring514/619, Nitrogen in R514/331Nitrogen attached indirectly to the piperidine ring by nonionic bondingExaminersPrimary: Rotman, Alan L.Assistant: Reyes, Hector M Attorney, Agent or FirmUS Patent References5216167, Phenylacetic acid benzylamidesIssued on: 06/01/1993 Inventor: Grell, et al.5312924Phenylacetic acid benzylamides Issued on: 05/17/1994 Inventor: Grell, et al. Foreign Patent References
International ClassC07C 069/76Foreign Application Priority Data1999-11-16 IN |
