Using COc1ccnc(Cl)n1, CC(C)(C)OC(=O)Cn1c(=O)[nH]c2ccccc21 to produce COc1ccnc(-n2c(=O)n(CC(=O)OC(C)(C)C)c3ccccc32)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.