Using Nc1c(Cl)cc2c3c(cccc13)C(=O)N(C1CCNCC1)C2=O, CC=O to produce CCN1CCC(N2C(=O)c3cccc4c(N)c(Cl)cc(c34)C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.