Syntheses of 5-Amino-2-phenyl-4(3H)-pyrimidinone Derivatives Starting with Glycine
摘要:
N-Cbz derivative of 5-amino-2-phenyl-4(3H)-pyrimidinone was prepared from sodium salt of methyl hydroxymethylene glycinate and benzamidine hydrochloride in good yield. However, the reaction with N-substituted benzamidine did not proceed to give the desired pyrimidinone. In contrast, the reaction of 4-ethoxymethylene-2-phenyl-5(4H)-oxazolone readily prepared from hippuric acid and N-substituted benzamidine proceeded nicely to give 5-(benzoylamino)-6-oxo-2-phenyl-1(6H)-pyrimidineacetic acid in high yield.
5-protected aminopyrimidine compound, production method thereof and intermediate thereof
申请人:Ajinomoto Co., Inc.
公开号:EP1577303A1
公开(公告)日:2005-09-21
The present invention provides a production method of 5-aminopyrimidine compound represented by the formula (5) by reacting a glycine compound represented by the formula (1) with t-butoxybisdimethylaminomethane, dimethylformamidedimethylacetal or dimethylformamidediethylacetal to produce a dialkylaminomethylene compound represented by the formula (2), reacting the compound of formula (2) in the presence of an acid to produce a hydroxymethylene compound represented by the formula (3), and reacting the compound of formula (3) with an amidine compound represented by the formula (4) or a salt thereof.
5-Protected aminopyrimidine compound, production method thereof and intermediate therefor
申请人:Takahashi Daisuke
公开号:US20050209257A1
公开(公告)日:2005-09-22
The present invention provides a production method of 5-aminopyrimidine compound represented by the formula (5) by reacting a glycine compound represented by the formula (1) with t-butoxybisdimethylaminomethane, dimethylformamidedimethylacetal or dimethylformamidediethylacetal to produce a dialkylaminomethylene compound represented by the formula (2), reacting the compound of formula (2) in the presence of an acid to produce a hydroxymethylene compound represented by the formula (3), and reacting the compound of formula (3) with an amidine compound represented by the formula (4) or a salt thereof.
The present invention relates to a novel production method of a diaminopyrimidine compound useful as an intermediate for various compounds having a pharmacological activity, a novel intermediate useful for producing said compound, and a production method of the intermediate.
The present invention provides a novel 5-aminopyrimidine compound represented by the following formula (2) and a novel 4,5-diaminopyrimidine compound represented by the formula (3), as well as production methods of the compounds of the following formulas (2) to (6).
wherein each symbol is as defined in the specification.
5-PROTECTED AMINOPYRIMIDINE COMPOUND, PRODUCTION METHOD THEREOF AND INTERMEDIATE THEREFOR
申请人:TAKAHASHI Daisuke
公开号:US20090137803A1
公开(公告)日:2009-05-28
The present invention provides a production method of 5-aminopyrimidine compound represented by the formula (5) by reacting a glycine compound represented by the formula (1) with t-butoxybisdimethylaminomethane, dimethylformamidedimethylacetal or dimethylformamidediethylacetal to produce a dialkylaminomethylene compound represented by the formula (2), reacting the compound of formula (2) in the presence of an acid to produce a hydroxymethylene compound represented by the formula (3), and reacting the compound of formula (3) with an amidine compound represented by the formula (4) or a salt thereof.