Benzotriazole-Assisted Solid-Phase Assembly of Leu-Enkephalin, Amyloid β segment 34−42, and other “Difficult” Peptide Sequences
摘要:
Microwave-assisted solid-phase syntheses of six "difficult" peptides, H-VVSVV-NH(2) (3), H-VVVSVV-NH(2) (4), H-VIVIG-OH (5), H-TVTVTV-NH(2) (6), H-VKDGYI-NH(2) (7), and H-VKDVYI-NH(2) (8), were achieved utilizing N-(Fmoc-(alpha-aminoacyl)benzotriazoles. Extension to the syntheses of Leu-enkephalin (9) and amyloid-beta (34-42) (10) demonstrates that this strategy comprises an efficient route to new and known "difficult" peptides.
Benzotriazole-Assisted Solid-Phase Assembly of Leu-Enkephalin, Amyloid β segment 34−42, and other “Difficult” Peptide Sequences
摘要:
Microwave-assisted solid-phase syntheses of six "difficult" peptides, H-VVSVV-NH(2) (3), H-VVVSVV-NH(2) (4), H-VIVIG-OH (5), H-TVTVTV-NH(2) (6), H-VKDGYI-NH(2) (7), and H-VKDVYI-NH(2) (8), were achieved utilizing N-(Fmoc-(alpha-aminoacyl)benzotriazoles. Extension to the syntheses of Leu-enkephalin (9) and amyloid-beta (34-42) (10) demonstrates that this strategy comprises an efficient route to new and known "difficult" peptides.
Boosting Fmoc Solid-Phase Peptide Synthesis by Ultrasonication
作者:Francesco Merlino、Stefano Tomassi、Ali M. Yousif、Anna Messere、Luciana Marinelli、Paolo Grieco、Ettore Novellino、Sandro Cosconati、Salvatore Di Maro
DOI:10.1021/acs.orglett.9b02283
日期:2019.8.16
Fmoc-based solid-phasepeptidesynthesis (SPPS). Our study culminated with the development of an ultrasound-assisted strategy (US-SPPS) that allowed for the synthesis of different biologically active peptides (up to 44-mer), with a remarkable savings of material and reaction time. Noteworthy, ultrasonic irradiation did not exacerbate the main side reactions and improved the synthesis of peptides endowed