Using CC(C)(C)OC(=O)N1CC(C)(C)OC2(CCN(Cc3ccccc3)CC2)C1 to produce CC(C)(C)OC(=O)N1CC(C)(C)OC2(CCNCC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.