protio form (1) as an inhibitor of gastric acid secretion stimulated by gastrin tetrapeptide. The hexafluoro analogue (11) was 0.4 times as potent as 1. A useful pyridine ring synthesis was developed to prepare the metabolites of 1, 10a (4-hydroxymethyl) and 10b (6-hydroxymethyl), and the hexafluoro analogue 11. These syntheses involved the condensation of 1,3-diketones with an appropriately N-substituted
使用同位素取代来延迟胃抗分泌剂N,N-二甲基-N'-[2-(二异丙
氨基
氨基)乙基] -N'-(4,6-二甲基-2-
吡啶基)
脲的氧化代谢(1 )并提高其抗分泌效能。1的
吡啶环甲基氢被
氘或
氟取代。发现六
氘代类似物(12)作为胃泌素四肽刺激的胃酸分泌的
抑制剂,其效力比蛋白质形式(1)高约2.1倍。六
氟类似物(11)的效力是1的0.4倍。开发了一种有用的
吡啶环合成方法来制备1、10a(4-羟甲基)和10b(6-羟甲基)以及六
氟类似物11的代谢物。涉及1,3-二酮与适当的N-取代的a基
乙酸酯的缩合。