Citreoazopyrone, a novel metabolite of a hybrid strain KO 0011 derived from Penicillium citreo-viride B. IFO 6200 and 4692

Tetrahedron Letters

Volumn 38, Issue 17, 1997, Pages 3025-3026

  Kosemura, Seiji ^a   Yamamura, Shosuke ^a  

^a KEIO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

PYRONE DERIVATIVE;

ARTICLE; DRUG ISOLATION; DRUG STRUCTURE; MASS SPECTROMETRY; MYCELIUM; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PENICILLIUM; PLANT GROWTH;

EID: 0030932128     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)00525-X     Document Type: Article

References (13)

1. Shizuri, Y.; Nishiyama, S.; Imai, D; Yamamura, S.; Furukawa, H.; Kawai, K.; Okuda, N. Tetrahedron Lett., 1984, 25, 4771.
2. a) Kosemura, S.; Matsunaga, K.; Yamamura, S.; Kubota, M.; Ohba, S. Tetrahedron Lett., 1991, 32, 3543.
3. b) Kosemura, S.; Matsunaga, K.; Yamamura, S. Chem. Lett., 1991, 1811.
4. c) Kosemura, S.; Nagamatsu, H.; Yamamura, S. Bull. Chem. Soc. Jpn., 1992, 65, 926.
5. d) Kosemura, S.; Miyata, H.; Matsunaga, K.; Yamamura, S. Tetrahedron Lett., 1992, 33, 3883.
6. e) Kosemura, S.; Miyata, H.; Yamamura, S.; Albone, K.; Simpson, T. J. J. Chem Soc Perkin Trans 1 1994, 135.
7. f) Kosemura, S.; Uotsu, S.; Yamamura, S.; Tetrahedron Lett., 1995, 36, 7481.
8. g) Kosemura, S.; Matsuo, S.; Yamamura, S. Phytochemistry, 1996, 43, 1231.
9. 3) δ 170.4 (s, C-3), 163.3 (s, C-1), 153.5 (s, C-5), 110.1 (s, C-4), 104.7 (d, C-9), 89.3 (d, C-2), 87.2 (d, C-7), 79.7 (t, C-10), 56.3 (q, 3-OMe), 54.9 (q, 9-OMe), and 53.9 (q, 9-OMe), 38.4 (d, C-8), and 9.4 (q, C-6).
10. 3) δ 5.52 (1H, s), 3.86 (1H, dd, J= 4.2, 2.4 Hz), 3.85 (3H, s), 3.36 (1H, dd, J= 5.7, 2.4 Hz), 3.06 (1H, dd, J= 5.7, 4.2 Hz), and 2.06 (3H, s).
11. 3) δ 5.50 (1H, s), 3.85 (3H, s), 2.97 (1H, d, J= 5.6 Hz), 2.85 (1H, d, J= 5.6 Hz), 2.00 (3H, s), and 1.61 (3H, s).
12. Kosemura, S.; Kojima, S.; Yamamura, S. Chemistry Lett., 1991, 33. equation presented Citreopyrone B (4) was isolated from the mycelium of a hybrid strain KO 0092 derived from P. Citreo-viride B. IFO 6200 and 4692.
13. Aoyama, T.; Inoue, S.; Shioiri, T. Tetrahedron Lett., 1984, 25, 433.