Using NCC(=O)O, CCCc1nc(C(=O)OCC)c(O)c2sc(-c3ccccc3)nc12 to produce CCCc1nc(C(=O)NCC(=O)O)c(O)c2sc(-c3ccccc3)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.