Using CCCc1c(CSc2nnc(SCc3ccc(OCC(=O)OCC)cc3)s2)ccc(C(C)=O)c1O to produce CCCc1c(CSc2nnc(SCc3ccc(OCC(=O)O)cc3)s2)ccc(C(C)=O)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.