Using NCc1cccc(Nc2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)c1, O=C1CCCO1 to produce O=C(CCCO)NCc1cccc(Nc2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.