Using Clc1nccnc1C1CN(c2ncc3ccccc3n2)C1, OB(O)c1ccc(Cl)cc1 to produce Clc1ccc(-c2nccnc2C2CN(c3ncc4ccccc4n3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.