Using CCOCC1CCN(C(=O)c2cc3c(cc2C)[nH]c(=O)c2cnn(C4CCN(Cc5ccccc5)C4)c23)CC1 to produce O=c1[nH]c2ccccc2c2[nH]ncc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.