1-Benzyloxymethyl-5-ethyl-6-(2-pyridylthio)uracil 153562-59-5 2,4(1H,3H)-Pyrimidinedione, 5-ethyl-1-[(phenylmethoxy)methyl]-6-(2-pyridinylthio)- AIDS-043389 AIDS043389 E-BPTU E-BPYU HEPT DERIV. NSC648400