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J. Neurochem.
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Marvizón, J.-C.G.1
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Skolnick, P.3
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L. F. Burroughs, Nature, 179, 360 (1957); D. O. Adams and S. F. Yang, Proc. Natl. Acad. Sci. U. S. A., 76, 170 (1979); J-C. G. Marvizón, A. H. Lewin, and P. Skolnick, J. Neurochem., 52, 992 (1989); V. Nadler, Y. Kloog, and M. Sokolovsky, Eur. J. Pharmacol., 157, 115 (1988); D.K.J.E, Von Lubitz, R. C.-S. Lin, R. J. McKenzie, T.M. Devlin, R. T. McCabe, and P. Skolnick, Eur. J. Pharmacol., 219, 153 (1992); H. Kodama and Y. Shimohigashi, J. Synth. Org. Chem. Jpn., 52, 180 (1994).
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Nadler, V.1
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L. F. Burroughs, Nature, 179, 360 (1957); D. O. Adams and S. F. Yang, Proc. Natl. Acad. Sci. U. S. A., 76, 170 (1979); J-C. G. Marvizón, A. H. Lewin, and P. Skolnick, J. Neurochem., 52, 992 (1989); V. Nadler, Y. Kloog, and M. Sokolovsky, Eur. J. Pharmacol., 157, 115 (1988); D.K.J.E, Von Lubitz, R. C.-S. Lin, R. J. McKenzie, T.M. Devlin, R. T. McCabe, and P. Skolnick, Eur. J. Pharmacol., 219, 153 (1992); H. Kodama and Y. Shimohigashi, J. Synth. Org. Chem. Jpn., 52, 180 (1994).
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Von Lubitz, D.K.J.E.1
Lin, R.C.-S.2
McKenzie, R.J.3
Devlin, T.M.4
McCabe, R.T.5
Skolnick, P.6
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6
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0028383384
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Taguchi and co-workers recently reported the synthesis of amino acids containing the difluorocyclopropane moiety [2-(2-carboxy-3,3-difluorocyclopropyl)glycines]; A. Shibuya, A. Sato, and T. Taguchi, Bioorg. Med. Chem. Lett., 8, 1979 (1998).
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Takanashi, H.5
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0032353048
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Itoh and co-workers recently reported the lipase-catalyzed asymmetric hydrolysis of cis-1,2-bis(acetoxymethyl)-3,3-difluorocyclopropane; T. Itoh, K. Mitsukura, and M. Furutani, Chem. Lett., 1998, 903.
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Furutani, M.3
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13
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0009046783
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note
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These compounds were purified by recrystallization from n-hexane (for 8b and 9b) or n-hexane / ethyl acetate (for 8a and 9a).
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14
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35848945419
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K. Ninomiya, T. Shioiri, and S. Yamada, Tetrahedron, 30, 2151 (1974).
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Tetrahedron
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Ninomiya, K.1
Shioiri, T.2
Yamada, S.3
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15
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0009001168
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note
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Based on HPLC analysis of the benzoyl esters of 9. The optical purity of these compounds turned out to be almost 100%ee. Only one enantiomer was detected.
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16
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0009001169
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note
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-1, 2801 reflections measured, 2657 reflections unique, R1 = 0.0572, wR2 = 0.1703.
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17
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0242528545
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The enantiopreference of the lipase-catalyzed asymmetric acetylation of 5 followed the empirical rule proposed by Kazlauskas et al.: A. N. E. Weissfloch and R. J. Kazlauskas, J. Org. Chem., 60, 6959 (1995).
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Weissfloch, A.N.E.1
Kazlauskas, R.J.2
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18
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0009086314
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note
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3CN or aq.KOH-MeOH) to deprotect the Cbz group from 11a were unsuccessful.
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19
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0009027587
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note
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++H) 138.0367.
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