A Novel Histamine 2(H2) Receptor Antagonist with Gastroprotective Activity. I. Synthesis and Pharmacological Evaluation of N-Phenoxypropylacetamide Derivatives with Thioether Function.
作者:Yasuo SEKINE、Nobuhiko HIRAKAWA、Noriaki KASHIWABA、Hajime MATSUMOTO、Teruo KUTSUMA、Tetsuaki YAMAURA、Akihiro SEKINE
DOI:10.1248/cpb.46.610
日期:——
N-(phenoxypropyl)acetamide derivatives with a thioether moiety and their sulfur-oxidized analogues were synthesized and evaluated for histamine H2-receptor antagonistic activity, Ca antagonistic activity and gastric anti-secretory activity in the lumen-perfuseed rat. Selected compounds were also tested for gastroprotective activity, which was expected to be based on Ca antagonistic activity. Structure-activity
为了开发新型抗溃疡药,合成了一系列具有硫醚部分的N-(苯氧丙基)乙酰胺衍生物及其硫氧化类似物,并评估了其对组胺H2-受体的拮抗活性,对钙的拮抗活性和对胃的抑制作用。腔灌注大鼠体内的抗分泌活性。还测试了选择的化合物的胃保护活性,预期其基于Ca拮抗活性。讨论了构效关系。作为硫醚部分,发现-CH 2 -S(O)对-CH 2 -Ar(Ar;苯基或呋喃基)对于上述活性是最佳的。特别地,在大鼠模型中,N- [3-[(3-(哌啶子基甲基)苯氧基]丙基]乙酰胺与苄基亚磺酰基,苄基磺酰基,糠基亚磺酰基或糠基磺酰基显示出有效的胃保护活性。这些化合物是具有胃抗分泌和胃保护活性的新型抗溃疡药物的候选者。2-糠基亚磺酰基-N- [3-[(哌啶子基甲基)苯氧基]丙基]乙酰胺是测试化合物中最有效的,代号为FRG-8701。