Cloxacepride and related compounds: a new series of orally active antiallergic compounds
作者:Gunter Metz、M. H. Pindell、H. L. Chen
DOI:10.1021/jm00361a022
日期:1983.7
4-[[(p-Chlorophenoxy)acetyl]amino]-5-chloro-2-methoxy-N-[2-(diethylamino)ethyl]benzamide (cloxacepride, 1), exhibited substantial oral antiallergic potential in a reaginic PCA test in rats over a wide range of antigenic challenge times. Available reference compounds with oral activity, such as doxantrazole and 7-(2-hydroxyethoxy)-9-oxoxanthene-2-carboxylic acid (AH 7725, 4), were active only when administered
4-[[(对-氯苯氧基)乙酰基]氨基] -5-氯-2-甲氧基-N- [2-(二乙基氨基)乙基]苯甲酰胺(cloxacepride,1)在PCA测试中显示出明显的口服抗过敏潜力。大鼠在广泛的抗原挑战时间内。现有的具有口服活性的参考化合物,例如多沙唑和7-(2-羟基乙氧基)-9-氧杂蒽-2-羧酸(AH 7725,4),仅在激发前15分钟给药才具有活性:4,尤其是效果不一致。氯吡格雷的口服ED50值为46-49 mg / kg,与茶碱相当,静脉注射2 mg / kg的铬糖酸二钠(DSCG)可立即攻击。口服ED50剂量后,1显示出比茶碱更慢的发作和更长的作用持续时间。全身性过敏反应和抗组胺活性的抑制作用的缺乏表明了特异性作用或尿素性抗原抗体反应。根据必需的取代基,研究和讨论了各种化学修饰的构效关系。