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Volumn 69, Issue 18, 2004, Pages 5850-5860

A novel, mild, and facile method to prepare 6-methylidene pe nem derivatives

Author keywords

[No Author keywords available]

Indexed keywords

BROMOHYDRIN; PENEM;

EID: 4344693782     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo049880g     Document Type: Article
Times cited : (15)

References (39)
  • 17
    • 4344563685 scopus 로고    scopus 로고
    • note
    • The PMB bromopenem 7 intermediate decomposed to an extent of 30% after standing at 40 °C for 7 days in the solid state while that of the PNB bromopenem 12 did not decompose over 15 days after standing under the same conditions.
  • 19
    • 4344567528 scopus 로고    scopus 로고
    • JP-2654076, U.S. Patent 4,977,256, 1990
    • (b) Aoyagi, S.; Hayashi, T.; Kuramoto, Y. JP-2654076, U.S. Patent 4,977,256, 1990.
    • Aoyagi, S.1    Hayashi, T.2    Kuramoto, Y.3
  • 21
    • 0001622595 scopus 로고    scopus 로고
    • A mixture of the bromoacetates 14a and 14b showed same retention time on the normal phase HPLC. The other minor diastereomers 14c and 14d were unstable to isolate but detected by LC-MS. (11) (a) Abiko, A.; Liu, J. F.; Masamune, S. J. Org. Chem. 1996, 61, 2590.
    • (1996) J. Org. Chem. , vol.61 , pp. 2590
    • Abiko, A.1    Liu, J.F.2    Masamune, S.3
  • 38
    • 4344615657 scopus 로고    scopus 로고
    • note
    • 3N-promoted aldol-type condensation of 12 did not proceed with nitrile, ester, activated amide such as imidazolide, 1,3-thiazolidine-2-thione amide, and Weinreb's amide.
  • 39
    • 4344664751 scopus 로고    scopus 로고
    • note
    • Commercially available zinc dust was activated with 1 N HCl for 15 min and filtered. It was washed well with deionized water and used as such.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.