1,4-Benzothiazine ATP-Sensitive Potassium Channel Openers: Modifications at the C-2 and C-6 Positions
作者:Alma Martelli、Giuseppe Manfroni、Paola Sabbatini、Maria Letizia Barreca、Lara Testai、Michela Novelli、Stefano Sabatini、Serena Massari、Oriana Tabarrini、Pellegrino Masiello、Vincenzo Calderone、Violetta Cecchetti
DOI:10.1021/jm400435a
日期:2013.6.13
vascular smooth muscle cells, with potency similar or superior to that of the reference levcromakalim (LCRK). The selective KATP blocker glibenclamide antagonized the above vascular effects, confirming that KATP channels are closely involved in the mechanism of action. The experimental results confirmed the 1,4-benzothiazine nucleus as an optimal scaffold for activators of vascular KATP channels; moreover
ATP敏感性钾(K ATP)通道在控制心血管功能中起着重要作用。在本文中,合成了一系列在C-2和C-6位置修饰的4-(1-氧代-2-环戊烯基)-1,4-苯并噻嗪衍生物作为血管K ATP通道的开放剂。大多数测试化合物在人血管平滑肌细胞中引起了大鼠主动脉环的血管舒张作用和膜超极化,其效力与参考左旋克马卡林(LCRK)相似或更高。选择性K ATP阻滞剂格列本脲拮抗上述血管作用,证实K ATP渠道与作用机制密切相关。实验结果证实了1,4-苯并噻嗪核是血管K ATP通道激活剂的最佳支架。此外,6-乙酰基取代的苯并噻嗪8表现出的高水平效力,以及对胰岛β细胞胰岛素分泌的任何显着干扰,为进一步开发一系列新的有效的血管K ATP激活剂铺平了道路。渠道。