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2. Agents acting on the central nervous system. XIII. 2,3,4,4a,5,6-Hexahydro-1(H)-pyrazino[1,2-a]quinolines. A new class of hypotensive agents
3. Synthesis and 5-Hydroxytryptamine (5-HT) activity of 2,3,4,4a-Tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5-(6H)ones and 2,3,4,4a,5,6-Hexahydro-1H-pyrazino[1,2-a]quinoxalines
4. For proton NMR data for the trifluoroacetic acid salt, see, Kikuchi, C.; Ando, T.; Fuji, K.; Okuno, M.; Morita, E.; Imai, M.; Ushiroda, O.; Koyama, M.; Hiranuma, T. U.S. Patent 6,498,251, 2002;