Using CCCN(C(=O)OC(C)(C)C)c1c(CC)nc2c(-c3ccc(Cl)cc3Cl)nccn12 to produce CCCNc1c(CC)nc2c(-c3ccc(Cl)cc3Cl)nccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.