Using C=CCn1c(-c2ccc(Cl)cc2)n[nH]c1=O, ClCc1cncn1Cc1c(Cl)cccc1Cl to produce C=CCn1c(-c2ccc(Cl)cc2)nn(Cc2cncn2Cc2c(Cl)cccc2Cl)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.