Using O=C1CCCc2cccnc21, NCCC[C@H](NC(=O)c1ccc(CNCc2ccccn2)s1)C(=O)O to produce O=C(N[C@@H](CCCNC1CCCc2cccnc21)C(=O)O)c1ccc(CNCc2ccccn2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.