Using COc1cc2c(cc1OC)C(Cc1ccccc1CC(=O)O)NCC2 to produce COc1cc2c(cc1OC)C1Cc3ccccc3CC(=O)N1CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.