Using Cc1cnc(CN(CCCCN)Cc2ncccc2C(C)C)c(C)c1, O=C=NCCCl to produce Cc1cnc(CN(CCCCN2CCNC2=O)Cc2ncccc2C(C)C)c(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.