US Patent 7164025 Manufacture of single isomer methylphenidate
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Patent Inventor Names
Hooshang Shahriari Zavareh0
Marianne Langston0
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Patent abstract
The present invention pertains to a process for obtaining a single enantiomer, d or l, of threo-methylphenidate, comprising resolution of a mixture of the enantiomers; racemisation of the unwanted enantiomer, to give a mixture of all four stereoisomers; and separation of the erythro stereoisomers, to leave the same mixture of enantiomers for resolution.
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US Patent 07164025 Manufacture of single isomer methylphenidate US Patent 7164025 Manufacture of single isomer methylphenidate
Infobox
Patent Number
071640250
Patent Number
71640250
Edits on 25 Mar, 2023
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Patent Jurisdiction
Patent Number
071640250
Date of Patent
January 16, 2007
0Patent Application Number
099281390
Date Filed
August 10, 2001
0Official Website
Patent Primary Examiner
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US Patent 07164025 Manufacture of single isomer methylphenidate
Infobox
Is a
Patent jurisdiction
Patent number
07164025
Date of patent
January 16, 2007
Patent application number
09928139
Date Filed
August 10, 2001
Patent primary examiner
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