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Volumn 66, Issue 23, 2010, Pages 4144-4149

Stereoselective synthesis of fluorine-containing analogues of anti-bacterial sanfetrinem and LK-157

Author keywords

Lactam; Asymmetric transfer hydrogenation; Ruthenium; Total synthesis

Indexed keywords

ANTIINFECTIVE AGENT; AZETIDINONE DERIVATIVE; BICARBONATE; CYCLOHEXENE DERIVATIVE; ETHYLIDENE 4 METHOXYTRINEM; FLUORINE; LITHIUM; LK 157; RUTHENIUM COMPLEX; SANFETRINEM; UNCLASSIFIED DRUG;

EID: 77953094163     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2010.03.104     Document Type: Article
Times cited : (32)

References (53)
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    • 2DPEN]-catalyzed asymmetric transfer hydrogenation of a β-keto-α-amino ester via DKR, see:
    • 2DPEN]-catalyzed asymmetric transfer hydrogenation of a β-keto-α-amino ester via DKR, see:. Mohar B., Valleix A., Desmurs J.-R., Felemez M., Wagner A., and Mioskowski C. Chem. Commun. (2001) 2572-2573
    • (2001) Chem. Commun. , pp. 2572-2573
    • Mohar, B.1    Valleix, A.2    Desmurs, J.-R.3    Felemez, M.4    Wagner, A.5    Mioskowski, C.6
  • 29
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    • note
    • The syn/anti configurations for 4 were assigned based on the separate transformation of the stereoisomers into their corresponding (E)- and (Z)-olefins by stereoselective dehydration under Mitsunobu's conditions. For this, see Supporting data.
  • 30
    • 77953084415 scopus 로고    scopus 로고
    • note
    • 4 in MeOH at 0 °C led to syn/anti ratio of 13:87. For this, see Supporting data.
  • 31
    • 77953105652 scopus 로고    scopus 로고
    • 2DPEN] afforded the corresponding syn-β-hydroxy ester with 96% ee and a dr of 83:17. For this, see:
    • 2DPEN] afforded the corresponding syn-β-hydroxy ester with 96% ee and a dr of 83:17. For this, see:
  • 36
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    • We also failed to acetoxylate the new N-TBDMS-protected azetidinone 7 following standard literature procedures. For adopted conditions, see:
    • We also failed to acetoxylate the new N-TBDMS-protected azetidinone 7 following standard literature procedures. For adopted conditions, see:
  • 40
    • 77953098262 scopus 로고    scopus 로고
    • note
    • CCDC 751242 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/retrieving.html or from the Cambridge Crystallographic Data Centre (12, Union Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336 033, or deposit@ccdc.cam.ac.uk).
  • 41
    • 77953094657 scopus 로고    scopus 로고
    • The displacement of the acetoxy group from (1′R,3R,4R)-4-acetoxy-3-[1′-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone using O-TMS-enol ether or metal (Mg, Zn, Zr, Sn) enolates of (S)-2-methoxycyclohexanone has been shown to be a reasonably stereoselective C-C coupling reaction. For examples of this, see:
    • The displacement of the acetoxy group from (1′R,3R,4R)-4-acetoxy-3-[1′-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone using O-TMS-enol ether or metal (Mg, Zn, Zr, Sn) enolates of (S)-2-methoxycyclohexanone has been shown to be a reasonably stereoselective C-C coupling reaction. For examples of this, see:
  • 42
    • 77953089516 scopus 로고    scopus 로고
    • Ref. 7;
    • Ref. 7;
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    • Böhme, H.; Eiden, F. DE1025883, 1958.
    • Böhme, H.; Eiden, F. DE1025883, 1958.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.