Using Cn1cc(-c2cc3nccn3c(-c3ccn(C4(CC#N)CN(C(=O)OC(C)(C)C)C4)n3)n2)cn1, ClCCl to produce Cn1cc(-c2cc3nccn3c(-c3ccn(C4(CC#N)CNC4)n3)n2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.