Using COc1ccc(N)c(N)n1, CC(C)(C)OC(=O)N1CCC(=O)CC1 to produce COc1ccc(NC2CCN(C(=O)OC(C)(C)C)CC2)c(N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.