A protected 33-residue peptide corresponding to the entire amino acid sequence of human cholecystokinin (hCCK-33) was synthesized by successive azide condensations of 7 peptide fragments of established purity. β-Cycloheptyl aspartate [Asp(OChp)] was employed to suppress base-catalyzed succinimide formation.
通过连续
叠氮化物缩合 7 个已确定纯度的肽片段,合成了对应于人胆囊收缩素 (hCCK-33) 完整
氨基酸序列的受保护的 33 个残基肽。 β-环庚基
天冬氨酸 [Asp(OChp)] 用于抑制碱催化的琥珀
酰亚胺形成。