Novel ent-vibsane- and dolabellane-type diterpenoids from the liverwort odontoschisma denudatum

Tetrahedron Letters

Volumn 39, Issue 7, 1998, Pages 579-582

  Hashimoto, Toshihiro ^a   Toyota, Masao ^a   Koyama, Hiroki ^a   Kikkawa, Akari ^a   Yoshida, Mayumi ^a   Tanaka, Masami ^a   Takaoka, Shigeru ^a   Asakawa, Yoshinori ^a  

^a TOKUSHIMA BUNRI UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

DITERPENOID;

ARTICLE; DRUG ISOLATION; DRUG STRUCTURE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; X RAY CRYSTALLOGRAPHY;

EID: 0032510088     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)10611-6     Document Type: Article

References (11)

1. 1. Y. Asakawa, "Chemical Constituents of Hepaticae," in "Progress in the Chemistry of Organic Natural Products" (W. Herz, H. Grisebach, and W. G. Kirby eds.),Vol. 42, p. 1. Wien -New York, Springer (1982).
2. 2. Y. Asakawa, Chemical Constituents of Bryophytes in "Progress in the Chemistry of Organic Natural Products" (W. Herz, W. G. Kirby, Moore, W. Steglich and Ch. Tamm eds.), Vol. 65, P. 1. Wien-NewYork, Springer (1996).
3. 3. A. Matsuo, K. Kamio, K. Uohama, K. Yoshida, J. D. Conolly, and G. A. Sim, Phytochemistry, 27, 1153 (1988).
4. 3): δ 66.3 (d, C-5), 125.7 (d, C-2), 129.7 (d, C-9), 130.7 (d, C-6), 132.2 (s, C-3), 139.5 (d, C-10), 142.4 (d, C-7), 215.2 (s, C-14).
5. 3): δ 126.9 (d, C-9), 127.9 (d, C-6), 128.3 (d, C-2), 132.7 (s, C-3), 143.4 (d, C-10), 155.3 (s, C-7), 200.3 (s, C-5), 214.9 (s, C-14).
6. 3): δ 125.6 (d, C-9), 126.3 (d, C-6), 128.0 (d, C-2), 128.2 (s, C-3), 137.7 (d, C-10), 150.1 (s, C-7), 200.6 (s, C-5), 215.0 (s, C-14).
7. 3): δ59.4 (t, C-16), 70.5 (d, C-6), 76.3 (d, C-10), 90.2 (s, C-12), 126.5 (d, C-7), 130.5 (d, C-3), 135.6 (s, C-4), 136.7 (s, C-8), 171.1 (a, OAc).
8. -1 by Mac Science MXC 18 instrument. Final R value was 0.057 for 3385 reflections. The supplementary materials have been deposited at the Cambridge Crystallographic Data Center.
9. 9. T. Kusumi, T. Hamada, M. O. Ishitsuka, I. Ohtani and H. Kakizawa, J. Org. Chem., 57, 1033 (1992).
10. -1. Final R value was 0.056 for 2770 reflections.
11. 11. Y. Fukuyama, H. Minami, K. Takeuchi, M. Kodama, and K. Kawazu, Tetrahedron Lett., 37, 6767.