Using O=C1Nc2cccnc2N(C(=O)CCCCl)c2ccccc21, C1CCNC1 to produce O=C1Nc2cccnc2N(C(=O)CCCN2CCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.