Discrepancy of the spectral data between adunctin E and the synthetic one

Tetrahedron Letters

Volumn 48, Issue 32, 2007, Pages 5619-5622

  Yamashita, Masayuki ^a   Yadav, Navnath Dnyanoba ^a   Sumida, Yuto ^a   Kawasaki, Ikuo ^a   Kurume, Ai ^a   Ohta, Shunsaku ^a  

^a KYOTO PHARMACEUTICAL UNIVERSITY   (Japan)

Author keywords

Adunctin E; Dibenzofuran; Linderol A; Natural product

Indexed keywords

ADUNCTIN E; HEXAHYDRODIBENZOFURANONE; LINDEROL A; PLANT EXTRACT; UNCLASSIFIED DRUG;

ARTICLE; CARBON NUCLEAR MAGNETIC RESONANCE; DRUG STRUCTURE; DRUG SYNTHESIS; PROTON NUCLEAR MAGNETIC RESONANCE; STEREOCHEMISTRY; STRUCTURE ANALYSIS;

EID: 34447274693     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.06.050     Document Type: Article

References (19)

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8. Synthesis of (-)- and (+)-3:. Yamashita M., Shimizu T., Kawasaki I., and Ohta S. Tetrahedron: Asymmetry 15 (2004) 2315
9. Kawada A., Mitamura S., Matsuo J., Tsuchiya T., and Kobayashi S. Bull. Chem. Soc. Jpn. 73 (2000) 2325
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13. 4.
14. Sen E.S., Roach L.S., Bogg K.J., Ewing J.G., and Magrath J. J. Org. Chem. 62 (1997) 6684
15. 3. Crystallographic data (excluding structure factors) for the structures in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication number CCDC 650339 for 10. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [Fax: +44 (0) 1223 336033; E-mail: deposit@ccdc.cam.ac.uk].
16. 5: C, 73.56; H, 7.60. Found: C, 73.32; H, 7.56.
17. 3.
18. We requested the spectral data of adunctin E (1) from Dr. Sticher, but to date we have not received any information in this regard.
19. Linderol A (3) was hydrogenated to afford dihydrolinderol A, a 6-epimer of 2. The spectral data for this compound were not consistent with those of 2. See Ref. 3b. We also prepared the possible compounds of which 3-phenylpropionyl group was substituted at the 2-position not the 4-position, and its 6-epimer, however, their spectral data were not consistent with those of 2.