Using O=C(C=Cc1ccc2ccccc2c1)C=Cc1ccc2ccccc2c1, N=C(N)NN to produce N=C(N)NN=C(C=Cc1ccc2ccccc2c1)C=Cc1ccc2ccccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.