Using NCC(=O)O, CCCCOC(=O)c1ncc2cc(Sc3ccccc3)sc2c1O to produce O=C(O)CNC(=O)c1ncc2cc(Sc3ccccc3)sc2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.