Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takayuki Sonoda0
Chang Shan Zhang0
Hirokazu Kuwabara0
Hiromitsu Saitoh0
Date of Patent
May 25, 2010
0Patent Application Number
110467430
Date Filed
February 1, 2005
0Patent Primary Examiner
Patent abstract
A method in which a pyridinium derivative such as 1,3-dimethyl-2,3-dihydro-2-oxopyrimidinium chloride is reacted with an acetyl compound such as 4-acetylpyridine, and then the reaction product is reacted with ammonia or an ammonium salt.
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