Using NCc1cccc(-c2csc(N=C(N)N)n2)n1, CCOc1c(N)c(=O)c1=O to produce NC(N)=Nc1nc(-c2cccc(CNc3c(N)c(=O)c3=O)n2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.