Using Cc1nc2ccccc2s1, O=Cc1ccc2cc(N(c3ccccc3)c3ccccc3)ccc2c1 to produce C(=Cc1nc2ccccc2s1)c1ccc2cc(N(c3ccccc3)c3ccccc3)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.