Using O=C(Cl)c1cccnc1Cl, Clc1ccc(CC2=NCCN2)cc1 to produce O=c1c2cccnc2c(-c2ccc(Cl)cc2)c2n1CCN2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.