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1)  4H-pyrido[3,2-e][1,3]Thiazine-4-one-pyrimidine
4-H吡啶并[3,2-e][1,3]噻嗪-4-酮嘧啶
2)  pyrazolo[3,4-d]pyrimidin-4-one
吡唑并[3,4-d]嘧啶-4(5-H)-酮
3)  thieno[2,3-d]pyrimidin-4(3H)-one
噻吩并[2,3-d]嘧啶-4(3H)-酮
4)  thiadiazolo[3,2-a]Pyrimi Dinone
噻二唑并[3,2-a]嘧啶酮
5)  benzofuro[3,2-d]pyrimidin-4(3H)-one
苯并呋喃并[3,2-d]嘧啶-4(3H)-酮
1.
The aza-Wittig reaction of iminophosphorane 3 with aromatic isocyanates gave carbodiimides 4, which were allowed to react further with various phenols and alcohols in the presence of a catalytic amount of solid potassium carbonate or sodium ethoxide to give 2-alkoxy(aryloxy)-benzofuro[3,2-d]pyrimidin-4(3H)-ones in 72%~88% yields.
应用膦亚胺3与芳基异氰酸酯的氮杂Wittig反应,生成碳二亚胺4,4再分别与酚、醇作用,在碳酸钾或醇钠催化下关环,以72%~88%的产率合成了2-烷(芳)氧基取代-苯并呋喃并[3,2-d]嘧啶-4(3H)-酮衍生物5和6,其结构经IR,1HNMR,MS和元素分析证实。
6)  thiazolo[3,2-a]pyrimidine
噻唑并[3,2-a]嘧啶
1.
A new class of thiazolo[3,2-a]pyrimidine compounds were synthesized by the reaction of 5-carbethoxyl-4-aryl-6-methyl-1,2,3,4-tetrahydropyrimidin-2-ones with dimethyl acetylenedicarboxylate.
5-乙氧羰基-4-芳基-6-甲基-3,4-二氢嘧啶-2-酮与丁炔二酸二甲酯反应,合成了系列新的噻唑并[3,2-a]嘧啶类化合物,反应具有时间短、收率高、后处理简单等优点。
补充资料:噻喘酮
分子式:C23H23NO5S
分子量:暂无
CAS号:34580-14-8

性质:暂无

制备方法:暂无

用途:抗组胺药,平喘药,用于预防、治疗支气管炎哮喘。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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