Using Cn1ncnc1CCl, O=c1[nH]c2c(cc1-c1ccccc1)nnn2-c1ccccc1 to produce Cn1ncnc1COc1nc2c(cc1-c1ccccc1)nnn2-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.