New sesqui- and diterpenoids from the Japanese liverwort Jungermannia infusca (MITT.) Steph.

Chemical and Pharmaceutical Bulletin

Volumn 46, Issue 7, 1998, Pages 1184-1185

  Nagashima, Fumihiro ^a   Suzuki, Makoto ^a   Takaoka, Shigeru ^a   Asakawa, Yoshinori ^a  

^a TOKUSHIMA BUNRI UNIVERSITY   (Japan)

Author keywords

Diterpenoid; Hepaticae; Jungermannia infusca; Liverwort; Sesquiterpenoid

Indexed keywords

SESQUITERPENOID;

ARTICLE; CARBON NUCLEAR MAGNETIC RESONANCE; DRUG ISOLATION; PROTON NUCLEAR MAGNETIC RESONANCE; STEREOCHEMISTRY; STRUCTURE ANALYSIS; X RAY CRYSTALLOGRAPHY;

EID: 0031856175     PISSN: 00092363     EISSN: None     Source Type: Journal    
DOI: 10.1248/cpb.46.1184     Document Type: Article

References (11)

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7. Nagashima F., Tanaka H., Takaoka S., Asakawa Y., Phytochemistry, 45, 353-363 (1997).
8. 3) 75.7 (C-1), 127.4 (C-2), 139.4 (C-3), 75.3 (C-4), 23.3 (C-5), 41.1 (C-6), 47.2 (C-7), 39.2 (C-8), 19.3 (C-9), 40.8 (C-10), 44.5 (C-11), 24.6 (C-12), 25.4 (C-13), 17.7 (C-14), 18.7 (C-15).
9. -1. Diffraction measurements were made on a Mac Sciences MXC 18. The structure was solved by direct methods using CRYSTAN SIR92 and refined by full matrix least-squares. Final R = 0.085, Rw = 0.104, S = 2.575.
10. 3) 74.6 (C-1), 124.8 (C-2), 139.8 (C-3), 76.2 (C-4), 27.1 (C-5), 41.5 (C-6), 45.7 (C-7), 39.1 (C-8), 19.2 (C-9), 40.6 (C-10), 44.4 (C-11), 24.6 (C-12), 25.4 (C-13), 19.0 (C-14), 18.3 (C-15).
11. 3) 37.2 (C-1), 18.2 (C-2), 41.1 (C-3), 34.3 (C-4), 47.7 (C-5), 22.2 (C-6), 45.6 (C-7), 209.2 (C-8), 218.2 (C-9), 53.2 (C-10), 32.5 (C-11), 35.7 (C-12), 72.6 (C-13), 144.4 (C-14), 112.2 (C-15), 28.8 (C-16), 29.9 (C-17), 22.5 (C-18), 33.4 (C-19), 17.3 (C-20).