Using Nc1ncc2ncn(COCCO)c2n1, CC(=O)OCc1c2ccccc2c(COC(C)=O)c2ccccc12 to produce CC(=O)OCCOCn1cnc2cnc(N)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.