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Volumn 45, Issue 21, 1989, Pages 6631-6644

Structure, Sythesis and Absolute Configuration of Leptosphaerin, a Metabolite of the Marine Ascomycete Leptosphaeria oraemaris.

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EID: 0001571279     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(01)89133-X     Document Type: Article
Times cited : (45)

References (29)
  • 16
    • 84918156895 scopus 로고    scopus 로고
    • It was incorrectly stated in a previous publication (ref 5) that this acetylation resulted in epimerization at the γ position of 16. In fact, acetylation of 15 is stereochemically clean; the 3:1 mixture reported earlier resulted from the stereoisomeric mixture of cycloadducts 12 and 13.
  • 20
    • 84918156894 scopus 로고    scopus 로고
    • The commercial mixture of cis and trans isomers was used.
  • 24
    • 0001399730 scopus 로고
    • Regio- and stereo-selectivities in some nucleophilic reactions
    • (1980) Top. Current Chem. , vol.88 , pp. 145
    • Anh1
  • 26
    • 0343248289 scopus 로고
    • Substituierte 2-Butenolide und 3-Pyrrol-2-one (2-Butenlactame) aus α-funktionellen β-Acylvinyllithium-Verbindungen
    • (1977) Synthesis , pp. 869
    • Schmidt1    Speer2
  • 28
    • 2742551031 scopus 로고
    • D −10.5°, values that are clearly at variance with our own data. The source of this discrepancy is unclear, but we note that both 47 and leptosphaerin are susceptible to epimerization at C(4). Possibly, in the course of oxidation of lactol (i) with pyridinium chlorochromate Rollin's intermediate underwent epimerization.
    • (1987) Tetrahedron Lett. , vol.28 , pp. 3813
    • Rollin1
  • 29
    • 84918156893 scopus 로고    scopus 로고
    • Personal communication from Professor J.C. Clardy.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.