Using CN1CC(Cl)CN=C(c2ccccc2)c2cc(Cl)ccc21, C1CCNCC1 to produce CN1c2ccc(Cl)cc2C(c2ccccc2)=NCC1CN1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.