Table 1.
Entry | Reagent | Additive | Base | Time [min] | Yield [%] b |
---|---|---|---|---|---|
1 | WSCI | HONB | DIEA | 15 | 68 |
2 | WSCI | HONB | DIEA | 30 | 100 |
aReactions were carried out between water-dispersible Fmoc-Phe-OH nanoparticles and H-Leu-Rink amide TentaGel resin. bAfter reaction the resin was hydrized and Phe and Leu content in hydrolysates were analyzed. The yield of coupling reaction was calculated from the amino acid ration of Phe and Leu by amino acid analysis.