Using CCN1CCN(c2cc(NC(=O)OC(C)(C)C)ncn2)CC1, C1CCNCC1 to produce CCN1CCN(c2cc(NC(=O)N3CCCCC3)ncn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.