Using CCOC(=O)c1ccc(N2CCC(=O)CC2)cc1, NC[C@H](O)COc1cccc2[nH]c(=O)[nH]c12 to produce CCOC(=O)c1ccc(N2CCC(NC[C@H](O)COc3cccc4[nH]c(=O)[nH]c34)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.