Using C1=C(c2ccccc2)CCNC1, O=C1CCc2cc(C(O)CCCl)ccc2N1 to produce O=C1CCc2cc(C=CCN3CC=C(c4ccccc4)CC3)ccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.