Using CCCc1c(OCCCCn2nnc(CCCC(=O)OCC)n2)ccc(C(C)=O)c1O to produce CCCc1c(OCCCCn2nnc(CCCC(=O)O)n2)ccc(C(C)=O)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.