Using O=Cc1cccc(OCCOc2cccc(C=O)c2)c1, N=C(N)NN to produce N=C(N)NN=Cc1cccc(OCCOc2cccc(C=NNC(=N)N)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.