Chemoselective Perfluoromethylation of Thio- and Selenoamides
摘要:
A chemo- and regioselective perfluoromethylation using thioamides/selenoamides (prepared one step from corresponding lactams) as starting materials has been discovered. The reaction demonstrated complementary chemoselectivity to the C-H trifluoromethylation of (hetero)arenes as well as remarkable functional group compatibility especially toward radical sensitive olefin-, alkyne-, and arylhalide-bearing substrates. The examples of perfluorothio-/selenolated drug molecules indicated application potential of this strategy in drug modification and drug-analogue preparation.
Selective Synthesis of 7-Substituted Purines via 7,8-Dihydropurines
摘要:
A simple and efficient protocol for the preparation of 7-substituted purines is described. 6- and 2,6-Dihalopurines were N-9-tritylated and then transformed to 7,8-dihydropurines by DIBAL-H. Subsequent N-7-alkylation followed by N-9-trityl deprotection with trifluoroacetic acid was accompanied by spontaneous reoxidation, which led to the 7-substituted purines at 55-88% overall isolated yields.
[EN] METHODS AND COMPOSITIONS FOR THE TREATMENT OF RNA VIRAL INFECTIONS<br/>[FR] MÉTHODES ET COMPOSITIONS POUR LE TRAITEMENT D'INFECTIONS VIRALES À ARN
申请人:UNIV CALIFORNIA
公开号:WO2018075947A1
公开(公告)日:2018-04-26
Disclosed herein, inter alia, are agents having antiviral activity and methods of use thereof.
本公开的内容包括具有抗病毒活性的药物和使用方法。
METHODS AND COMPOSITION FOR THE TREATMENT OF RNA VIRAL INFECTIONS
申请人:The Regents of the University of California
公开号:US20190262371A1
公开(公告)日:2019-08-29
Disclosed herein, inter alia, are agents having antiviral activity and methods of use thereof.
Chemoselective Perfluoromethylation of Thio- and Selenoamides
作者:Xianhong Xu、Jianyu Zhang、Tao Xu
DOI:10.1021/acs.orglett.0c03241
日期:2020.11.6
A chemo- and regioselective perfluoromethylation using thioamides/selenoamides (prepared one step from corresponding lactams) as starting materials has been discovered. The reaction demonstrated complementary chemoselectivity to the C-H trifluoromethylation of (hetero)arenes as well as remarkable functional group compatibility especially toward radical sensitive olefin-, alkyne-, and arylhalide-bearing substrates. The examples of perfluorothio-/selenolated drug molecules indicated application potential of this strategy in drug modification and drug-analogue preparation.
Selective Synthesis of 7-Substituted Purines via 7,8-Dihydropurines
A simple and efficient protocol for the preparation of 7-substituted purines is described. 6- and 2,6-Dihalopurines were N-9-tritylated and then transformed to 7,8-dihydropurines by DIBAL-H. Subsequent N-7-alkylation followed by N-9-trityl deprotection with trifluoroacetic acid was accompanied by spontaneous reoxidation, which led to the 7-substituted purines at 55-88% overall isolated yields.