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Volumn 46, Issue 35, 2005, Pages 5835-5838

Novel and efficient regioselective enzymatic approach to 3′-, 5′- and 3′,5′-di-O-crotonyl 2′-deoxynucleoside derivatives

Author keywords

[No Author keywords available]

Indexed keywords

2' DEOXYNUCLEOSIDE; LIPASE B;

EID: 23044465985     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2005.06.138     Document Type: Article
Times cited : (25)

References (27)
  • 17
    • 23044452337 scopus 로고    scopus 로고
    • Biological assays have been performed by Prof. Erik de Clercq in Belgium, unpublished results.
    • Biological assays have been performed by Prof. Erik de Clercq in Belgium, unpublished results.
  • 25
    • 33947487166 scopus 로고
    • GC conditions: a capillary column TRACSIL TRB-5A (30 m × 0.32 mm × 0.50 μm) was used with nitrogen as carrier gas and a flame ionization detector. Injector and detector temperatures were set at 300°C, head column pressure at 13.1 psi and split 50:1; column initial temperature 220°C (3 min), rate 5°C/min until 260°C, then 15 min at 260°C, followed by heating rate 5°C/min until 300°C, column final temperature was 300°C (10 min). Samples (100 μL) were silylated as described in the literature (C.C. Sweeley, R. Bentley, M. Makita, and W.W. Wells J. Am. Chem. Soc. 85 1963 2497 2507 ). 3′,5′-di-O-TMS-thymidine appears at 12.3 min; 5′-O-crotonyl-3′-O-TMS-thymidine at 17.9 min; 3′-O-crotonyl- 5′-O-TMS-thymidine at 18.8 min; compound 4a at 29.7 min; 5′-O-but-3″-enoyl-3′-O-TMS-thymidine at 16.1 min; 3′-O-but-3″-enoyl-5′-O-TMS-thymidine at 17.2 min; 7 at 23.0 min; compounds 8 and 9 at 25.6 and 26.7 min
    • (1963) J. Am. Chem. Soc. , vol.85 , pp. 2497-2507
    • Sweeley, C.C.1    Bentley, R.2    Makita, M.3    Wells, W.W.4
  • 27
    • 4344647097 scopus 로고    scopus 로고
    • It has been shown that CAL-B is able to catalyze Michael-type additions on α,β-unsaturated nitriles: O. Torre, I. Alfonso, and V. Gotor Chem. Commun. 2004 1724 1725
    • (2004) Chem. Commun. , pp. 1724-1725
    • Torre, O.1    Alfonso, I.2    Gotor, V.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.