Synthesis and reactions of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidin‐5‐carbonitrile
摘要:
AbstractThe synthesis of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carbonitrile 4 is described. Compound 4 was reacted with various alkylants. The reaction with chloroacetic acid derivatives results in the formation of thieno[2,3‐d]pyrimidines 8. When methyl iodide was used 2,4,6‐tris(methylsul‐fanyl)pyrimidine‐5‐carbonitrile 5 was obtained. The substitution of the methylsulfanyl groups in compound 5 by several N‐nuclophiles leads to amino substituted pyrimidines.
Synthesis and reactions of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidin‐5‐carbonitrile
摘要:
AbstractThe synthesis of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carbonitrile 4 is described. Compound 4 was reacted with various alkylants. The reaction with chloroacetic acid derivatives results in the formation of thieno[2,3‐d]pyrimidines 8. When methyl iodide was used 2,4,6‐tris(methylsul‐fanyl)pyrimidine‐5‐carbonitrile 5 was obtained. The substitution of the methylsulfanyl groups in compound 5 by several N‐nuclophiles leads to amino substituted pyrimidines.
Selective nucleophilic replacement of the benzylsulfanyl group in 2,4-disulfanyl-substituted thieno[2,3-<i>d</i>]pyrimidin-6-carboxylic acid derivatives by secondary amines
作者:Detlef Briel、Simon Drescher、Bodo Dobner
DOI:10.1002/jhet.5570420514
日期:2005.7
Thieno[2,3-d]pyrimidines with benzylsulfanyl and allylsulfanyl group in the presence of other alkylsul-fanyl substituents react selectively under mild conditions with secondary amines under replacement of the benzyl or allyl residue whereas the other substituents remain intact. This enables the synthesis of different basic substituted derivatives with potentially biologically activity.
在存在其他烷基硫代-芳基取代基的情况下,具有苄基硫烷基和烯丙基硫烷基的噻吩并[2,3- d ]嘧啶在温和的条件下与仲胺选择性地反应,取代了苄基或烯丙基残基,而其他取代基则保持完整。这使得能够合成具有潜在生物学活性的不同的碱性取代的衍生物。
Selective nucleophilic substitution reactions in 2,4,6-trisulfanyl-substituted pyrimidine-5-carbonitriles by secondary amines
4-bis-(amidomethylsulfanyl) pyrimidine-5-carbonitriles react selective in the 2-position with various secondary cyclic amines under mild conditions. The resulting pyrimidines were finally transformed into the corresponding thieno[2,3-d]pyrimidine-6-carboxylic acid amides which afford the synthesis of selective substituted thienopyrimidines.
高度官能化的杂环6-烷基-分别为6-芳烷基硫烷基-2,4-双-(酰胺基甲基硫烷基)嘧啶-5-腈在2-位与温和条件下的各种仲环状胺选择性反应。最后将得到的嘧啶转化为相应的噻吩并[2,3 - d ]嘧啶-6-羧酸酰胺,从而合成了选择性取代的噻吩并嘧啶。
Synthesis and reactions of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidin‐5‐carbonitrile
作者:Detlef Briel、Tanja Franz、Bodo Dobner
DOI:10.1002/jhet.5570390502
日期:2002.9
AbstractThe synthesis of 6‐methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carbonitrile 4 is described. Compound 4 was reacted with various alkylants. The reaction with chloroacetic acid derivatives results in the formation of thieno[2,3‐d]pyrimidines 8. When methyl iodide was used 2,4,6‐tris(methylsul‐fanyl)pyrimidine‐5‐carbonitrile 5 was obtained. The substitution of the methylsulfanyl groups in compound 5 by several N‐nuclophiles leads to amino substituted pyrimidines.