74502-83-3Relevant academic research and scientific papers
IMIDAZOTRIAZINONE COMPOUNDS
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, (2013/10/08)
The present invention provides imidazotriazinone compounds which are inhibitors of phosphodiesterase 9 and pharmaceutically acceptable salt thereof. The present invention further provides processes, pharmaceutical compositions, pharmaceutical preparations and pharmaceutical use of the compounds in the treatment of PDE9 associated diseases or disorders in mammals, including humans.
Studies on Pyrimidine Derivatives. XXXII. Reaction of 4-Substituted 2,6-Dimethylpyrimidine 1-Oxides with Phosphoryl Chloride
Sakamoto, Takao,Yoshizawa, Hiroshi,Kaneda, Sohichi,Hama, Yoshiaki,Yamanaka, Hiroshi
, p. 4533 - 4538 (2007/10/02)
The reaction of 2,6-dimethyl-4-phenylpyrimidine 1-oxide with phosphoryl chloride gave 4-chloromethyl-2-methyl-6-phenylpyrimidine exclusively.In contrast, 2,6-dimethyl-4-methoxy-pyrimidine 1-oxide and 2,6-dimethyl-4-dimethylaminopyrimidine 1-oxide reacted with the same reagent to give the corresponding 2-chloromethylpyrimidines predominantly.Keywords - pyrimidine N-oxide; chloromethylpyrimidine; phosphoryl chloride; siteselective reaction; substituent effect
Studies on Pyrimidine Derivatives. XX. Synthetic Utility of Hydroxymethylpyrimidines and Related Compounds
Sakamoto, Takao,Tanji, Ken-Ichi,Niitsuma, Setsuko,Ono, Takayasu,Yamanaka, Hiroshi
, p. 3362 - 3368 (2007/10/02)
The conversion of a hydroxymethyl group at the 2- or 4-position of simple pyrimidines to a chloromethyl, cyanomethyl, ethoxycarbonylmethyl, or formyl group is described.Various pyrimidines having an olefinic side chain were also synthesized via Witting reagents derived from chloromethylpyrimidines.Keywords - hydroxymethylation; chloromethylpyrimidine; cyanomethylpyrimidine; pyrimidinecarbaldehyde; Witting reaction
