Using NCc1ccc2c(c1)OCO2, CN(C(=O)c1cccc(Cl)c1)c1nc2n(c1C(=O)O)CCCC2 to produce CN(C(=O)c1cccc(Cl)c1)c1nc2n(c1C(=O)NCc1ccc3c(c1)OCO3)CCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.