Using Brc1ccncc1, C=CCn1c2c(c3cc(Cl)ccc31)CN(C)CC2 to produce CN1CCc2c(c3cc(Cl)ccc3n2C/C=C/c2ccncc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.