Novel synthesis and biological activity of 2-substituted derivatives of 3-cyano-4-imino-2-methylthio-8-methoxy-4H-pyrimido[2,1-b][1,3]benzothiazole and 3-amino-4-imino-8-methoxy-2H-pyrazolo[3′,4′:4,5]pyrimido[2,1-b][1,3]benzothiazole
作者:S. G. Badne、D. K. Swamy、V. N. Bhosale、S. V. Kuberkar
DOI:10.1002/jhet.559
日期:2011.7
active methylene group yielded corresponding 2‐substituted derivatives of compound 3 (4a, 4b, 4c, 4d, 5a, 5b, 5c, 6a, 6b, 6c, 6d, 6e, and 7a, 7b, 7c, 7d, 7e). Similarly, novel heterocyclic compounds, 3‐amino‐4‐imino‐8‐methoxy‐2H 8a/aryl 8b–c/heteryl 8d, 8e, 8f/pyrazolo[3′,4′:4,5]pyrimido[2,1‐b][1,3]benzothiazoles, were prepared by heating compound 3 independently with hydrazine hydrate/arylhydrazines/heterylhydrazines
2-氨基-6-甲氧基苯1上与双反应(甲硫基)亚甲基丙二腈2在二甲基甲酰胺时,可以得到的无水碳酸钾催化量的3-氰基-4-亚氨基-8-甲氧基4的存在ħ 2嘧啶并[ ,1b ] [1,3]苯并噻唑3。在相似的实验条件下,化合物3分别用含活性亚甲基的芳基胺/杂胺/苯酚/化合物处理后,可得到化合物3的相应2-取代衍生物(4a,4b,4c,4d,5a,5b,5c,6a,6b,6c,6d,6e和7a,7b,7c,7d,7e)。同样,新型杂环化合物3-氨基-4-亚氨基-8-甲氧基-2 H 8a /芳基8b – c /杂基8d,8e,8f / pyrazolo [3',4':4,5] pyrimido [2,通过加热化合物3制备1- b ] [1,3]苯并噻唑独立地分别与水合肼/芳基肼/杂肼。筛选所有这些新合成的化合物的抗微生物活性。J.杂环化学。(2011)。