Using Cc1c(CN2CCN(c3nccnc3-c3ccc(CCl)cc3)CC2)cnn1C, O=C1CCCCN1 to produce Cc1c(CN2CCN(c3nccnc3-c3ccc(CN4CCCCC4=O)cc3)CC2)cnn1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.