Using NCC(=O)O, CCCCOC(=O)c1ncc2sc(-c3ccc(OC)cc3)cc2c1O to produce COc1ccc(-c2cc3c(O)c(C(=O)NCC(=O)O)ncc3s2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.