发现新型四氢苯并[ b ]噻吩和吡咯基支架作为有效和选择性的CB2受体配体:控制结合亲和力,选择性和功能性的结构元素
摘要:
基于CB2的疗法在治疗各种疾病(例如炎症,多发性硬化症,疼痛,免疫相关疾病,骨质疏松症和癌症)方面显示出强大的潜力,而不会引起CB1配体的典型神经行为副作用。因此,目前的研究活动是针对CB2选择性配体的开发。在本文中,报道了新颖的基于杂环的CB 2选择性化合物的合成。一组2,5-二烷基-1-苯基-1H-吡咯-3-羧酰胺,5-取代的-2-(酰基氨基)/(2-磺酰基氨基)-噻吩-3-羧酸盐和2-(酰基氨基)/(合成了2-磺酰基氨基)-四氢苯并[ b ]噻吩-3-羧酸盐。生物学结果表明化合物具有很高的CB2结合亲和力和CB2 / CB1亚型选择性。化合物19a吡咯系列中的 α和19b表现出最高的CB2受体亲和力(分别为K i = 7.59和6.15 nM)以及最高的CB2 / CB1亚型选择性(分别为〜70和〜200倍)。此外,来自四氢苯并[ b ]噻吩系列的化合物6b在该系列中表现出最有效和最具选择性的CB2配体(K
Physicochemical properties and complex formation of ethyl 2-aryl(methyl)sulfonylamino-4,5,6,7-tetrahydrobenzothiophene-3-carboxylates
作者:L. G. Chekanova、K. O. Manylova、P. T. Pavlov、Yu. B. El’chishcheva、A. S. Kandakova
DOI:10.1134/s1070363214060243
日期:2014.6
Complexation of ethyl 2-aryl(alkyl)sulfonylamino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylates with nonferrous metal ions
作者:L. G. Chekanova、K. O. Manylova、P. T. Pavlov、E. V. Baigacheva、T. G. Tiunova
DOI:10.1134/s003602361504004x
日期:2015.4
Complexation of sulfonyl derivatives of the Gewald thiophenes (SGT) with Cu(II), Co(II), Ni(II), Zn(II), and Cd(II) ions in ammonia solutions was studied. The molar ratio method, the Job's method of continuous variation, and coductometric titration revealed ratios [M(II)]: [SGT] = 1: 2. The composition of preparatively isolated complexes was confirmed by IR spectroscopy and elemental analysis data. Solubility product constants for precipitates of the complexes and complexation equilibrium constants were calculated. Solubility product constants for M(II) complexes was shown to be dependent on the nature of sulfonyl substituent in SGT series.