Many derivatives of sodium alkylazulene sulfonates were newly synthesized and their antiulcer activites were examined in Shay pylorus-ligated rats. The values of lipophilicity (log P), a physicochemical parameter, of these new azulene derivatives were also examined in order to study the structure-activity relationship. The optimum value of log P which gave maximum anti-ulcer activity was about -1.0. Among the derivatives of azulene examined, 3-ethyl-7-isopropylazulene-1-sulfonic acid sodium salt (KT1-32) exhibited an extremely potent inhibitory action against Shay ulcer, and its antipeptic activity was more potent than than of guaiazulene sodium sulfonate (GAS). Furthermore, KT1-32 was extremely stable on heating as compared to GAS.
多种新合成的
钠代烷基
吖啶磺酸盐衍
生物在沙伊幽门结扎大鼠中进行了其抗溃疡活性的检测。此外,还研究了这些新
吖啶衍
生物的亲脂性(log P)这一物理
化学参数,以探讨结构-活性关系。log P的最佳值,即提供最大抗溃疡活性的值,大约为-1.0。在检测的
吖啶衍
生物中,3-乙基-7-
异丙基吖啶-1-
磺酸钠盐(KT1-32)对沙伊溃疡显示出极其强大的抑制作用,其抗胃酸活性比
愈创木基
吖啶磺酸钠(GAS)更强。此外,与GAS相比,KT1-32在加热过程中极为稳定。