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(a) Bende, Z.; Simon, K.; Tóth, G.; Toke, L.; Weber, L. Liebigs Ann. Chem. 1982, 924-929;
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Bende, Z.1
Simon, K.2
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Toke, L.4
Weber, L.5
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5
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84918049519
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(b) Bende, Z.; Bitter, L.; Toke, L.; Weber, L.; Tóth, G.; Janke, F. Liebigs Ann. Chem. 1982, 2146-2152;
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Liebigs Ann. Chem.
, pp. 2146-2152
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Bende, Z.1
Bitter, L.2
Toke, L.3
Weber, L.4
Tóth, G.5
Janke, F.6
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6
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48749141289
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(c) Bende, Z.; Toke, L.; Weber, L.; Toth, G.; Janke, F.; Csonka, G. Tetrahedron 1983, 40, 369-375;
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Tetrahedron
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Bende, Z.1
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Toth, G.4
Janke, F.5
Csonka, G.6
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7
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0000688955
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(d) Tóth, G.; Tischner, T.; Bende, Z.; Szejtli, G.; Toke, L. Monatsh. Chem. 1990, 121, 529-537;
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Tóth, G.1
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8
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0013008232
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(e) Tischer, T.; Toke, L.; Tóth, G. Acta Chim. Hung. 1990, 727, 171-172;
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Tischer, T.1
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84986514845
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(f) Janke, F.; Himmelreich, U.; Tóth, G.; Tischer, T.; Bende, Z.; Toke, L. J. Heterocyl. Chem. 1991, 28, 867-873.
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0034695518
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Fejes, I.; Nyerges, M.; Toke, L.; Pak, C. S. Tetrahedron 2000, 56, 639-644.
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Fejes, I.1
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Pak, C.S.4
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11
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23744482006
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Nyerges, M.; Somfai, B.; Tóth, J.; Dancsó, A.; Blaskó, G.; Toke, L. Synthesis 2005, 2039-2046.
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Nyerges, M.1
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Dancsó, A.4
Blaskó, G.5
Toke, L.6
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12
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0021134765
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For reports on the preparation of this heterocycle by other methods: (a) Hegedus, L. S.; McGuire, M. A.; Schultze, L. M.; Yijun, C.; Anderson, A. P. J. Am. Chem. Soc. 1984, 106, 2680-2687;
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Hegedus, L.S.1
McGuire, M.A.2
Schultze, L.M.3
Yijun, C.4
Anderson, A.P.5
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13
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0344404250
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(b) Göndös, Gy.; Gera, L.; Tóth, G.; Kálmán, A.; Bridson, J. Steroids 1998, 63, 375-382;
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Göndös, Gy.1
Gera, L.2
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Kálmán, A.4
Bridson, J.5
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18
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85030739521
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note
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2, C-9).
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20
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21844434153
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Castle, R., Ed.; Wiley & Sons: New York, Chapter 8
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(b) Huisgen, R. In Topics in Heterocyclic Chemistry; Castle, R., Ed.; Wiley & Sons: New York, 1969, pp 223-252, Chapter 8.
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Huisgen, R.1
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(a) Huisgen, R.; Morikawa, M.; Herbig, K.; Brunn, E. Chem. Ber. 1967, 100, 1094-1106;
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Huisgen, R.1
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Herbig, K.3
Brunn, E.4
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0347012259
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(b) Huisgen, R.; Morikawa, M.; Breslow, D. S.; Grashey, R. Chem. Ber. 1967, 100, 1602-1615;
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Chem. Ber.
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Huisgen, R.1
Morikawa, M.2
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(d) Huisgen, R.; Herbig, K.; Morikawa, M. Chem. Ber. 1967, 100, 1107-1115.
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(c) Valenciano, J.; Sanchez-Pavon, E.; Cuadro, A. M.; Vaquero, J. J.; Alvarez-Builla, J. J. Org. Chem. 2001, 66, 8528-8536.
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Alvarez-Builla, J.5
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For intramolecular 1,4-dipolar cycloadditions of cross-conjugated heteroaromatic betaines see: (a) Potts, K. T.; Dery, M. O. J. Org. Chem. 1990, 55, 2884-2894;
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Padwa, A.3
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Hadjiarapoglou, L.5
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(c) Padwa, A.; Harring, S. R.; Semones, M. A. J. Org. Chem. 1998, 63, 44-54.
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(a) Nair, V.; Sreekanth, A. R.; Abhilash, N.; Bhadbhade, M. M.; Gonnade, R. C. Org. Lett. 2002, 3575-3577;
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Nair, V.1
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Gonnade, R.C.5
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(b) Nair, V.; Sreekanth, A. R.; Biju, A. T.; Rath, N. P. Tetrahedron Lett. 2003, 44, 729-732;
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Nair, V.1
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Rath, N.P.4
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2342557154
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(c) Adib, M.; Mollahosseini, M.; Yavari, H.; Sayahi, M. H.; Bijanzadeh, H. R. Synthesis 2004, 861-864.
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Adib, M.1
Mollahosseini, M.2
Yavari, H.3
Sayahi, M.H.4
Bijanzadeh, H.R.5
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38
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85030744718
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note
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2, C-10).
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41
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27744591488
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(c) Zirngibl, L.; Wagner-Jauregg, T.; Pretsch, E.; Stage, D. J.; Hales, N. J.; Paris, C. W. Tetrahedron 1971, 27, 2203-2209;
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Zirngibl, L.1
Wagner-Jauregg, T.2
Pretsch, E.3
Stage, D.J.4
Hales, N.J.5
Paris, C.W.6
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27744467470
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(d) El-Emam, A. A.; Moustafa, M. A.; Eisa, H. M.; El-Kerdawy, M. M. Heterocycles 1986, 24, 1025-1029;
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El-Emam, A.A.1
Moustafa, M.A.2
Eisa, H.M.3
El-Kerdawy, M.M.4
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0028787680
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(e) Grigg, R.; McMeekin, P.; Sridharan, V. Tetrahedron 1995, 51, 13331-13346;
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Tetrahedron
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Grigg, R.1
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0035251201
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(f) Mangalagiu, I. I; Mangalagiu, G. C.; Petrovanu, M. Heterocycles 2001, 55, 365-370.
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Mangalagiu, I.I.1
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Petrovanu, M.3
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45
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0343385643
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The reaction of this β-carboline and methyl vinyl ketone or its equivalent has been already described: (a) Szántay, Cs.; Toke, L.; Honthy, K.; Kalaus, G. J. Org. Chem. 1967, 32, 423-427;
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J. Org. Chem.
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Szántay, C.1
Toke, L.2
Honthy, K.3
Kalaus, G.4
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