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Volumn , Issue 5, 1999, Pages 405-406

Synthesis of (+)-(R)-1-Amino-2,2-difluorocyclopropane-1-carboxylic acid through lipase-catalyzed asymmetric acetylation

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EID: 0033241994     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1999.405     Document Type: Article
Times cited : (29)

References (19)
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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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    • 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
  • 6
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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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    • 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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    • 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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    • note
    • These compounds were purified by recrystallization from n-hexane (for 8b and 9b) or n-hexane / ethyl acetate (for 8a and 9a).
  • 15
    • 0009001168 scopus 로고    scopus 로고
    • note
    • 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.
  • 16
    • 0009001169 scopus 로고    scopus 로고
    • note
    • -1, 2801 reflections measured, 2657 reflections unique, R1 = 0.0572, wR2 = 0.1703.
  • 17
    • 0242528545 scopus 로고
    • 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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    • note
    • 3CN or aq.KOH-MeOH) to deprotect the Cbz group from 11a were unsuccessful.
  • 19
    • 0009027587 scopus 로고    scopus 로고
    • note
    • ++H) 138.0367.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.