An undecapeptide amide, H-Pyr-Ala-Asp-Pro-Lys-Thr-Phe-Tyr-Gly-Leu-Met-NH2, corresponding to the entire amino acid sequence of an amphibian peptide, [Lys5, Thr6]-physalaemin, was synthesized using the thioanisole-mediated trifluoromethanesulfonic acid deprotection procedure. The synthetic peptide was as active as the natural peptide, in terms of the contractility in guinea pig ileum, and its potency relative to that of synthetic substance P was 0.467.
                                    使用
硫代
苯甲醚介导的
三氟甲磺酸脱保护程序合成了十一肽酰胺H-Pyr-Ala-Asp-Pro-Lys-Thr-Phe-Tyr-Gly-Leu-Met-NH2,与两栖动物肽[Lys5, Thr6]-physalaemin的整个
氨基酸序列相对应。就豚鼠回肠的收缩性而言,合成的肽与天然肽一样活跃,其效力与合成物质P的效力之比为0.467。