Using CC(C)(C)OC(=O)N1CC(N2CCc3cc(CN4CCC4)ccc3C2)C1 to produce c1cc2c(cc1CN1CCC1)CCN(C1CNC1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.