Using c1ccc(C2CCNCC2)cc1, O=C[C@H]1CN(Cc2ccccc2)C[C@@H]1c1ccccc1 to produce c1ccc(CN2C[C@H](CN3CCC(c4ccccc4)CC3)[C@@H](c3ccccc3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.