L-argininal derivatives and a method of manufacturing the same
CA 1183130 A · Owner: Nippon Kayaku Kabushiki Kaisha · Inventors: Saino, Tetsushi; Someno, Tetsuya; Aoyagi, Takaaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
L-argininal derivatives of the general formula: in which X is -CO- or -SO2-, and R is (1) an alkyl group having 3 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms a pyridyl, benzyloxy, furyl or thiophene group (2) a phenyl or benzyl group which may be optionally substituted on the benzene ring by a halogen atom or a lower alkyl or alkoxy, hydroxyl or nitro group. (3) a naphthyl group optionally substituted on the naphthalene ring by a lower alkylamino group (4) a pyrrolidinyl, pyrrolidone, or piperidyl group optionally having a nitrogen site protected by a benzyloxycarbonyl group, or (5) a group of the formula Z-Y- in which Y stands for a hydroxymethylene or …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.