Using COCOc1cccc(Cn2nc(C(=O)OC)c3c2-c2ccc(OCc4cncnc4)cc2CC3)c1 to produce COC(=O)c1nn(Cc2cccc(O)c2)c2c1CCc1cc(OCc3cncnc3)ccc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.