Using CCCC(=O)Cl, Nc1c(Cl)nc2ccccc2c1NCC1(O)CCSCC1 to produce CCCC(=O)Nc1c(Cl)nc2ccccc2c1NCC1(O)CCSCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.