Using CCOC(=O)/C(=N\OCCN=[N+]=[N-])c1csc(N)n1 to produce [N-]=[N+]=NCCO/N=C(\C(=O)O)c1csc(N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.