Using CC(C)(C)OC(=O)N1CCN(CCOC(=O)N2CCN(c3ccccc3)CC2)CC1, ClCCl to produce O=C(OCCN1CCNCC1)N1CCN(c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.