Using NCC(=O)O, CCCCOC(=O)c1nc(C)c2sc(C)cc2c1O to produce Cc1cc2c(O)c(C(=O)NCC(=O)O)nc(C)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.