메뉴 건너뛰기




Volumn 127, Issue 21, 2005, Pages 7834-7842

Taxadiene synthase-catalyzed cyclization of 6-fluorogeranylgeranyl diphosphate to 7-fluoroverticillenes

Author keywords

[No Author keywords available]

Indexed keywords

CATALYSIS; ELECTRONS; ENZYMES; GAS CHROMATOGRAPHY; HYDROCARBONS; MASS SPECTROMETRY; NUCLEAR MAGNETIC RESONANCE; STEREOCHEMISTRY; SYNTHESIS (CHEMICAL); X RAY ANALYSIS;

EID: 19744366357     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja050592r     Document Type: Article
Times cited : (76)

References (89)
  • 1
    • 0027353683 scopus 로고
    • The taxane diterpenoids
    • Herz, W., Kirby, G. W., Moore, R. E., Steglich, W., Tamm. Ch., Eds.: Springer-Verlag: Wien, New York
    • (a) Kingston, D. G. I.; Molinero, A. A.; Rimoldi, J. M. The Taxane Diterpenoids. In Progress in the Chemistry of Organic Natural Products: Herz, W., Kirby, G. W., Moore, R. E., Steglich, W., Tamm. Ch., Eds.: Springer-Verlag: Wien, New York, 1993; Vol. 61. pp 1-189.
    • (1993) Progress in the Chemistry of Organic Natural Products , vol.61 , pp. 1-189
    • Kingston, D.G.I.1    Molinero, A.A.2    Rimoldi, J.M.3
  • 4
    • 85012613025 scopus 로고
    • Taxus alkaloids
    • Brossi, A., Ed.: Academic Press: New York
    • (d) Blechert, S.; Guenard, S. Taxus Alkaloids. In The Alkaloid's. Chemistry and Pharmacology; Brossi, A., Ed.: Academic Press: New York, 1990; Vol. 39. pp 195-238.
    • (1990) The Alkaloid's. Chemistry and Pharmacology , vol.39 , pp. 195-238
    • Blechert, S.1    Guenard, S.2
  • 9
    • 0003332601 scopus 로고
    • Taxus alkaloids
    • Manske, R. H. F., ed.; Academic Press: New York
    • (e) Lythgoe, B. Taxus Alkaloids. In The Alkaloids. Chemistry and Physiology; Manske, R. H. F., ed.; Academic Press: New York, 1968; Vol. 10, pp 547-627.
    • (1968) The Alkaloids. Chemistry and Physiology , vol.10 , pp. 547-627
    • Lythgoe, B.1
  • 20
    • 0028012837 scopus 로고
    • (a) Nicolaou, K. C. et al. Nature 1994, 367., 630-634.
    • (1994) Nature , vol.367 , pp. 630-634
    • Nicolaou, K.C.1
  • 48
    • 19744380226 scopus 로고
    • Porter, J. W.; Spurgeon, S. L., Eds.; J. Wiley: New York
    • (b) Poulter, C. D.; Rilling, H. C. In Biosynthesis of Isoprenoid Compounds; Porter, J. W.; Spurgeon, S. L., Eds.; J. Wiley: New York, 1981; Vol. 1. pp 193-198.
    • (1981) Biosynthesis of Isoprenoid Compounds , vol.1 , pp. 193-198
    • Poulter, C.D.1    Rilling, H.C.2
  • 55
    • 19744368867 scopus 로고    scopus 로고
    • note
    • 5) and 4-benzyloxy-2-methyl-2-butenyl bromide were thwarted by rapid elimination of fluoride from the sulfonyl-stabilized anion to form a phenylsulfonylallene.
  • 60
    • 0000697458 scopus 로고
    • Interestingly, the trans/cis ratio varied with the reaction temperature. Higher selectivity (up to trans/cis. 93:7) was achieved at lower temperature (-78 °C). while ratios of 3:1 to 2:1 were typically obtained at higher temperatures (-45 to 0 °C). Evidently the remote fluoro substituent has a pronounced effect on the stereoeselectivity of the cuprate coupling since Weiler and others reported consistently high stereoselectivity (∼98:2) for similar substrates lacking the fluoro substituent at -43 to 0 °C. (a) Sum, F. W.; Weiler, L. J. Am. Chem. Soc. 1979, 101, 4401-4403.
    • (1979) J. Am. Chem. Soc. , vol.101 , pp. 4401-4403
    • Sum, F.W.1    Weiler, L.2
  • 89
    • 19744366694 scopus 로고    scopus 로고
    • note
    • 12 are unclear at this time. The probable conformation of the enantiomeric keto diepoxide derivative (C1-C2 and C10-C11 exocyclic bonds axial and equatorial, respectively, as in Figure 6) should have the mobile diepoxy nonane macrocycle in a positive octant, albeit with uncertainty in the exact atomic positions. The anticipated positive contribution from the macrocycle should be offset by the levorotatory effects of the rigid axial and equatorial methyl groups on the cyclohexanone ring. It seems plausible that an anomolaous rotatory contribution might be engendered by a through-space interaction of the n electrons of the 2,3-epoxide with the cyclohexanone carbonyl during the n → π* excitation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.