Development of Supramolecular Organo-Gel Based on Tripeptide Skeletons
作者:Eriko Azuma、Kouji Kuramochi、Kazunori Tsubaki
DOI:10.1248/cpb.58.680
日期:——
Boc-Ser-Val-Gly-OCH2Ph (31) showed high gelation abilities in the aromatic solvents, particularly in toluene. The minimum gelation concentration of 31 in toluene was 10 mg/ml, suggesting that 2500 molecules of toluene were immobilized by each molecule of the tripeptide 31. The FT-IR data indicated that formation of antiparallel β-sheets through intermolecular hydrogen bonding was central to the generation of nanofibers during gelation.
alkylation of Schiff base activated amino acids and small peptides via a Pd/Cu dual catalysis. A range of noncoded α,α-dialkyl α-aminoacids were easily synthesized in high yields and with excellent enantioselectivities (up to >99% ee). Furthermore, a direct and highly stereoselective synthesis of small peptides with enantiopure α-alkyl or α,α-dialkyl α-aminoacids residues incorporated at specific sites