4-aminopyrimidine derivatives as histamine H4 receptor antagonists
申请人:Carceller González Elena
公开号:US08431580B2
公开(公告)日:2013-04-30
4-Aminopyrimidine derivatives of formula (I) that are useful as histamine H4 receptor antagonists.
式(I)的4-氨基嘧啶衍生物可用作组胺H4受体拮抗剂。
4-AMINOPYRIMIDINE DERIVATIVES AS HISTAMINE H4 RECEPTOR ANTAGONISTS
申请人:Carceller González Elena
公开号:US20110039817A1
公开(公告)日:2011-02-17
4-Aminopyrimidine derivatives of formula (I) that are useful as histamine H4 receptor antagonists.
式(I)的4-氨基嘧啶衍生物可用作组胺H4受体拮抗剂。
Synthesis of 4-aminopyrimidine compounds
申请人:SENSORION
公开号:US11180480B2
公开(公告)日:2021-11-23
A process for manufacturing 2-isobutyl-6-(3-(methylamino)azetidin-1-yl)pyrimidin-4-amine of Formula (I):
including starting from 6-chloro-2-isobutylpyrimidin-4-amine and tert-butyl azetidin-3-yl(methyl)carbamate, or another N-protected N-methylazetidin-3-amine, and performing the following steps: (a) coupling reaction of both compounds in dimethylsulfoxide in presence of potassium carbonate to afford an intermediate protected compound; and (b) deprotection of the protected compound to afford 2-isobutyl-6-(3-(methylamino)azetidin-1-yl)pyrimidin-4-amine. Also, a process for manufacturing the intermediate protected compound, wherein deprotection step (b) is omitted, and the compounds obtained from the processes.