2-HEXYNYL-5'-N-ETHYLCARBOXAMIDOADANOSINE 2-HEXYNYL-5-N-ETHYLCARBOXAMIDO-*ADENOSIN 2-(1-hexyn-1-yl)adenosine-5'-n-ethyluronamide he-neca 2-hexynyladenosine-5'-N-ethylcarboxamide 2-(1-Hexyn-1-yl)adenosine-5μ-N-ethyluronamide, 2-Hexynyl-5μ-ethylcarboxamidoadenosine b-D-RibofuranuronaMide, 1-[6-aMino-2-(1-hexynyl)-9H-purin-9-yl]-1-deoxy-N-ethyl- 2-Hexynyl-5′-ethylcarboxamidoadenosine