Solid phase methodology on p-methylbenzhydrylamine resin was used for the synthesis of four analogs of vasopressin with the non coded amino acids, D-homoarginine (in position 8) and o-substituted L- or D-phenylalanine (in position 2). [L-Phe(o-Me)2,D-Har8]vasopressin (I), [D-Phe(o-Me)2,D-Har8]vasopressin (II), [L-Phe(o-Et)2,D-Har8]vasopressin (III) and [D-Phe(o-Et)2,D-Har8]vasopressin (IV) were synthesized. All analogs had very low antidiuretic activity. Analogs I and IV were low pressor inhibitors. All analogs were found to be the uterotonic inhibitors, the most potent on in vitro being [D-Phe(o-Et)2,D-Har8]vasopressin with a pA2 = 8.4.
在p-甲基苄基胺树脂上使用固相方法合成了四个非编码氨基酸类似加压素的类似物,其中包括D-同型精氨酸(位于第8位)和o-取代的L-或D-苯丙氨酸(位于第2位)。[L-Phe(o-Me)2,D-Har8]加压素(I),[D-Phe(o-Me)2,D-Har8]加压素(II),[L-Phe(o-Et)2,D-Har8]加压素(III)和[D-Phe(o-Et)2,D-Har8]加压素(IV)已经合成。所有类似物的抗利尿活性非常低。类似物I和IV是低血压抑制剂。所有类似物都被发现是子宫张力素抑制剂,其中体外抑制作用最强的是[D-Phe(o-Et)2,D-Har8]加压素,其pA2 = 8.4。