Using CCCc1c(CCC(=O)OCC)cnn1Cc1ccc(OCc2nc(-c3ccccc3)oc2C)cc1 to produce CCCc1c(CCC(=O)O)cnn1Cc1ccc(OCc2nc(-c3ccccc3)oc2C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.