Using Ic1ccnc2c1cnn2C(c1ccccc1)(c1ccccc1)c1ccccc1, O=C=O to produce O=C(O)c1ccnc2c1cnn2C(c1ccccc1)(c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.