Using CCCCNc1ccc2ncc(-c3ccc(C(=O)O)cc3)n2n1, CC(C)(C)OC(=O)N1CCNCC1 to produce CCCCNc1ccc2ncc(-c3ccc(C(=O)N4CCN(C(=O)OC(C)(C)C)CC4)cc3)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.