Using CCOC(=O)COCn1c(-c2cccnc2)c(C)c2cc(Cl)ccc21 to produce Cc1c(-c2cccnc2)n(COCCO)c2ccc(Cl)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.