Using O=C1Nc2cnc(Cl)nc2N(C2CCCC2)CC12CC2, CI to produce CN1C(=O)C2(CC2)CN(C2CCCC2)c2nc(Cl)ncc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.