Solid phase technique on p-methylbenzhydrylamine resin was used for the synthesis of four analogs of oxytocin and four analogs of vasopressin with the non-coded amino acids L- or D- and 1- or 2-naphthylalanine and D-homoarginine. [L-1-Nal2]oxytocin, [D-1-Nal2]oxytocin, [L-2-Nal2]oxytocin, [D-2-Nal2]oxytocin, [L-1-Nal2, D-Har8]vasopressin, [D-1-Nal2, D-Har8]vasopressin, [L-2-Nal2, D-Har8]vasopressin and [D-2-Nal2, D-Har8]vasopressin were synthesized. All eight analogs were found to be uterotonic inhibitors in vitro and in vivo. Analogs with 2-naphthylalanine are stronger inhibitors, particularly in the vasopressin series than the analogs with 1-naphthylalanine. Analogs with 1-naphthylalanine have no activity in the pressor test, analogs with 2-naphthylalanine are weak pressor inhibitors.
使用p-甲基苯甲胺树脂的固相技术合成了催产素的四个类似物和加压素的四个类似物,其中包括非编码氨基酸L-或D-和1-或2-萘氨酸以及D-同型精氨酸。合成的八个类似物分别为[L-1-Nal2]催产素,[D-1-Nal2]催产素,[L-2-Nal2]催产素,[D-2-Nal2]催产素,[L-1-Nal2,D-Har8]加压素,[D-1-Nal2,D-Har8]加压素,[L-2-Nal2,D-Har8]加压素和[D-2-Nal2,D-Har8]加压素。所有八种类似物在体内外均被发现为子宫收缩抑制剂。具有2-萘氨酸的类似物比具有1-萘氨酸的类似物更强的抑制作用,特别是在加压素系列中。具有1-萘氨酸的类似物在压力试验中没有活性,而具有2-萘氨酸的类似物是弱的压力抑制剂。