Convergent Chemical Synthesis of Proteins by Ligation of Peptide Hydrazides
作者:Ge-Min Fang、Jia-Xing Wang、Lei Liu
DOI:10.1002/anie.201203843
日期:2012.10.8
together: A generally applicable strategy for convergent chemicalsynthesis of proteins from multiple peptide segments is developed on the basis of the ligation of peptidehydrazides. The peptidehydrazide intermediates can be made at low cost and the new strategy is used in the synthesis of the 142 residue model protein RpS25 from six peptide segments. PG=protecting group.
Use of a Removable Backbone Modification Strategy to Prevent Aspartimide Formation in the Synthesis of Asp Lactam Cyclic Peptides
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作者:Tingting Cui、Junyou Chen、Rui Zhao、Yanyan Guo、Jiahui Tang、Yulei Li、Yi‐Ming Li、Donald Bierer、Lei Liu
DOI:10.1002/cjoc.202100272
日期:2021.9
removable backbone modification (RBM) strategy to prevent aspartimide formation, which thwarted all attempts to synthesize this target using direct solid-phase peptide synthesis. Validation of the RBM strategy in the synthesis of a second Asp lactam derivative was also accomplished. The RBM strategy is therefore proposed as a general method for the synthesis of Asp lactam cyclic peptides.
描述了 A-183 的 Asp 内酰胺衍生物的合成,A-183 是因子 7a 的选择性抑制剂,具有良好的抗凝和抗血栓形成活性。我们的合成依赖于使用可移除的骨架修饰 (RBM) 策略来防止天冬酰胺形成,这阻碍了所有使用直接固相肽合成来合成该目标的尝试。还完成了 RBM 策略在合成第二个 Asp 内酰胺衍生物中的验证。因此,建议将 RBM 策略作为合成 Asp 内酰胺环肽的通用方法。