Using CCCCc1nc2cccc(C(=O)OC)c2n1Cc1ccc(-c2cncnc2-c2nnn[nH]2)cc1 to produce CCCCc1nc2cccc(C(=O)O)c2n1Cc1ccc(-c2cncnc2-c2nnn[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.