Using CCOCC(=O)Nc1c(Cl)nc2ccccc2c1NCCNC(=O)OC(C)(C)C to produce CCOCc1nc2c(Cl)nc3ccccc3c2n1CCNC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.