中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Boc-Trp-Trp-OMe | 72254-56-9 | C28H32N4O5 | 504.586 |
N-叔丁氧羰基-L-色氨酸 | Boc-Trp-OH | 13139-14-5 | C16H20N2O4 | 304.346 |
Proteins that recognize and bind quaternary ammonium ions depend on “aromatic-cage” structural motifs that use multiple aromatic residues to engage the side chain’s ammonium cation. We introduce herein the use of 1-benzyltryptophan (Trp(Bn)) residues as synthetic, unnatural partial analogues of natural aromatic cages. We demonstrate the modular incorporation of these building blocks into simple dipeptide hosts and show that they are capable of binding quaternary ammonium ions in buffered water and in chloroform.