Using [N-]=[N+]=[N-], CCCc1c(OCc2cccn3c(=O)c(CCC#N)cnc23)ccc(C(C)=O)c1O to produce CCCc1c(OCc2cccn3c(=O)c(CCc4nnn[nH]4)cnc23)ccc(C(C)=O)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.