Synthesis and pharmacological investigation of novel 2-substituted-3-carboxamido-4H-pyrimidobenzothiazole derivatives as a new class of H1-antihistaminic agent
作者:Sunil V. Gupta、Kamalkishor G. Baheti、Saurabh B. Ganorkar、Deepak Dekhane、Shivaji Pawar、S. N. Thore
DOI:10.1007/s00044-012-0100-4
日期:2013.3
maleate was used as a standard drug. The active derivatives (8d–8g and 9d–9g) were found to have IC50 values comparable to reference standard chlorpheniramine maleate. The sedative potential of both series (8a–g and 9a–g) is less than the reference drug. Hence, it could serve as prototype molecules for further development as a new class of H1-antihistaminic agents.
为了开发潜在的H 1-抗组胺药,一系列新型的2-取代-3-羧酰胺基-4-氧代-4 H-嘧啶基[ 2,1- b ] [1,3]苯并噻唑(8a–g)合成了2-取代的3-羧酰胺基-8-氯-4-氧代-4 H-嘧啶[ 2,1- b ] [1,3]苯并噻唑(9a–g),并对其体外H 1-抗组胺药进行了评估活动对豚鼠回肠的制备。发现化合物的IC 50值在微摩尔范围内。马来酸氯苯那敏用作标准药物。发现活性衍生物(8d–8g和9d–9g)具有IC 50值可与参考标准马来酸氯苯那敏相媲美。两个系列(8a–g和9a–g)的镇静潜力均低于参考药物。因此,它可以作为原型分子作为新的H 1-抗组胺药进一步开发。