Studies of Bitter Peptides from Casein Hydrolyzate. IV. Relationship between Bitterness and Hydrophobic Amino Acids Moiety in the C-Terminal of BPIa (Arg–Gly–Pro–Pro–Phe–Ile–Val)
MDP and lipopeptide analog conjugates inducing HIV-derived peptide-specific antibody without adding further macromolecular carriers or adjuvants were synthesized.
合成了不添加进一步的大分子载体或佐剂、能诱导抗HIV来源肽段特异性抗体的MDP与脂肽类似物偶联物。
Gram‐Scale Synthesis of a Hexapeptide by Fragment Coupling in a Ball Mill
using solvent-less techniques such as ballmilling, a hexapeptide was synthesized in gram scale without using any toxic solvents. To date, this hexapeptide is the largest precisely controlled amino acid sequence ever synthesized in a ballmill. This study paves the way to future developments for the synthesis of longer peptides (and proteins) by using ballmilling.
Macrocyclization of Biaryl-Bridged Peptides through Late-Stage Palladium-Catalyzed C(sp<sup>2</sup>)–H Arylation
作者:Qingqing Bai、Zengbing Bai、Huan Wang
DOI:10.1021/acs.orglett.9b02945
日期:2019.10.18
Macrocyclic peptides are promising scaffolds of bioactive compounds and clinical therapeutics. Herein, we develop a strategy for the macrocyclization of biaryl-bridged peptides through late-stage Pd-catalyzed C(sp2)–H arylation. This method displays broad substrate scope and high efficiency in the synthesis of peptide conjugates with various bioactive molecules. Furthermore, we applied this method
Substance P analogs, [Arg11]-SP and SP (1-10)-Arg-OH, were synthesized by the liquid phase method. These peptides were purified by ion-exchange chromatography and partition chromatography. The biological activity of the peptides was evaluated in vitro on guinea-pig ileum. Replacement of Met11 in SP with Arg diminished the potency of SP activity. The analogs were found to be inactive as antagonists.
Gowda, B.K. Kempe; Rangappa; Gowda, D. Channe, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2002, vol. 41, # 5, p. 1039 - 1044