Using CCOC(OCC)N1C(=O)C(c2ncnc3cc(OCCOC)c(OC)cc23)c2ccccc21 to produce COCCOc1cc2ncnc(C3C(=O)N(C=O)c4ccccc43)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.