Using C=Cc1cnc2c(ccn2C)c1, CN1CCc2[nH]c3ccc(Cl)cc3c2C1 to produce CN1CCc2c(c3cc(Cl)ccc3n2CCc2cnc3c(ccn3C)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.