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Goti, A.; Cicchi, S.; Fedi, V.; Nannelli, L.; Brandi, A. J. Org. Chem. 1997, in press.
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(a) Giovannini, R.; Marcantoni, E.; Petrini, M. J. Org. Chem. 1995, 60, 5706.
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0000724877
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Pelletier, S. W., Ed.; Pergamon: Oxford
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(a) Hartmann, T.; Witte, L. Chemistry, Biology and Chemoecology of the Pyrrolizidine Alkaloids In Alkaloids: Chemical & Biological Perspectives; Pelletier, S. W., Ed.; Pergamon: Oxford, 1995; vol. 9, p. 155.
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Hartmann, T.1
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and preceding reports in the series
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(d) Robins, D. J. Nat. Prod. Rep. 1995, 12, 413; and preceding reports in the series.
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Robins, D.J.1
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18
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53649094083
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note
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D-Malic acid is ca. 30 times as expensive as its L-enantiomer. Moreover, the commercial product has a lower enantiomeric purity (95% e.e.).
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21
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0001508944
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Mead, E. W.; Looker, M.; Gardner, D. R.; Stermitz, F. R. Phytochemistry 1992, 31, 3255.
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Mead, E.W.1
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Stermitz, F.R.4
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22
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84970546586
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Culvenor, C.C.J.1
Koretskaya, N.I.2
Smith, L.W.3
Utkin, L.M.4
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23
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0001633498
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(b) Aasen, A. J.; Culvenor, C. C. J.; Smith, L. W. J. Org. Chem. 1969, 34, 4137.
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24
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(c) Danishefsky, S.; Mckee, R.; Singh, R. K. J. Am. Chem. Soc. 1977, 99, 7711.
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(g) Hudlicky, T.; Seoane, G.; Lovelace, T. C. J. Org. Chem. 1988, 53, 2094.
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Hudlicky, T.1
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37049098257
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(c) Ferrier, R. J.; Schmidt, P.; Tyler, P. C. J. Chem. Soc., Perkin Trans. 1 1985, 301.
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Ferrier, R.J.1
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Tyler, P.C.3
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39
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53649102916
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note
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All new compounds gave satisfactory spectral and analytical data.
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-
-
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40
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53649084431
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note
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2: C, 42.62; H, 4.95. Found: C, 42.68; H, 5.07.
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-
-
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41
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53649111686
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note
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7: C, 58.45; H, 5.48; N, 4.01. Found: C, 58.69; H, 5.51; N, 3.70.
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42
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53649097036
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Fedi, V. Tesi di Laurea, Università di Firenze 1996
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Fedi, V. Tesi di Laurea, Università di Firenze 1996.
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43
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0025362839
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Cicchi, S.; Goti, A.; Brandi, A.; Guarna, A.; De Sarlo, F. Tetrahedron Lett. 1990, 31, 3351.
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(1990)
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Cicchi, S.1
Goti, A.2
Brandi, A.3
Guarna, A.4
De Sarlo, F.5
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44
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53649103621
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note
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6: C, 60.18; H, 5.37; N, 4.39. Found: C, 59.95; H, 5.48; N, 3.92.
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-
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45
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84986721570
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Guarna, A.; Guidi, A.; Goti, A.; Brandi, A.; De Sarlo, F. Synthesis 1989, 175.
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Synthesis
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Guarna, A.1
Guidi, A.2
Goti, A.3
Brandi, A.4
De Sarlo, F.5
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46
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0016203898
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Sawhney, R. S.; Atal, C. K.; Culvenor, C. C. J.; Smith, L. W. Aust. J. Chem. 1974, 27, 1805.
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Sawhney, R.S.1
Atal, C.K.2
Culvenor, C.C.J.3
Smith, L.W.4
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47
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53649103466
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note
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17
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