Ulososide B, a new unusual norlanostane-triterpene glycoside and its genuine aglycone from the madagascar sponge Ulosa sp.

Tetrahedron Letters

Volumn 39, Issue 22, 1998, Pages 3807-3808

  Antonov, Alexander S ^a   Kalinovsky, Anatoly I ^a   Stonik, Valentine A ^a  

^a PACIFIC INSTITUTE OF BIOORGANIC CHEMISTRY   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

NORLANOSTANE; POLITEF; TRITERPENIC GLYCOSIDE; ULOSOSIDE B; UNCLASSIFIED DRUG;

ARTICLE; DRUG ISOLATION; DRUG STRUCTURE; ECHINODERM; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; ISOLATION PROCEDURE; NUCLEAR MAGNETIC RESONANCE; SPONGE; STEROL SYNTHESIS;

ECHINODERMATA; ULOSA; ULOSA SP.;

EID: 0032575150     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(98)00589-9     Document Type: Article

References (14)

1. 1. Stonik, V.A., Elyakov G.B. Secondary metabolites from echinoderms as chemotaxonomic markers. In Marine Bioorganic Chemistry: Scheuer, P.J.; Springer-Verlag: Berlin, 1988; vol. 2; pp. 43-86.
2. 2. Kitagawa, I.; Kobayashi, M.; Okamoto, Y.; Yoshikawa, Y.; Hamomoto, Y. Chem. Pharm. Bull., 1987, 35, 5036-5039.
3. 3. Kobayashi, M.; Okamoto, Y.; Kitagawa, I. Chem. Pharm. Bull., 1991, 39, 2867-2870.
4. 4. Carmely, S.; Roll, M.; Loya, Y.; Kashman, Y. J. Nat. Prod., 1989, 52, 167-170.
5. 5. Jaspars, M.; Crews, P. Tetrahedron Letters, 1994, 35, 7501-7504.
6. 6. Gulavita, N.K.; Wright, A.E.; Kelly-Borges, M.; Longley, R.E.; Yarwood, D.; Sills, M.A. Tetrahedron Letters, 1994, 35, 4299-4302.
7. 2-29, H-3 and some protons of the carbohydrate moiety are overlapped.
8. 8. Ishii, H., Tori, K., Tozyo, T., Yoshimura, Y. J. Chem. Soc. Perkin I, 1981, 1928-1933.
9. 5N) δ 36.8 (C-1), 29.2 (C-2), 73.1 (C-3), 55.0 (C-4), 45.2 (C-5), 20.8 (C-6), 29.0 (C-7), 128.4 (C-8), 37.7 (C-10), 22.5 (C-11), 37.4 (C-12), 42.5 (C-13), 52.2 (C-14), 24.2 (C-15), 29.5 (C-16), 56.0 (C-17), 11.7 (C-18), 19.0 (C-19), 33.2 (C-20), 18.9 (C-21), 45.4 (C-22), 65.8 (C-23), 48.9 (C-24), 25.0 (C-25), 22.5 (C-26), 23.7 (C-27), 64.5 (C-28), 179.1 (C-29). The signal of C-9 is overlapped with those of the solvent.
10. 10. Antonov, A.S.; Kalinovsky, A.I.; Stonik, V.A.; Evtushenko, E.V.; Elyakov G.B. Russ. Chem. Bull., 1994, 43, 1265-1268.
11. 5), 173.5, 169.6, 170.8, 170.4, 170.1, 170.0, 21.1, 20.9, 20.6, 20.5 (2), 23.1 (Ac).
12. 3)
13. 13. Eggert, H.; Djerassi, C. J. Org. Chem. 1981, 46, 5399-5401.
14. 14. Cheng, J.; Kobayashi J.; Nakamura, H.; Ohizumi, Y.; Hirata, Y.; Sasaki, T. J. Chem. Soc. Perkin Trans. I. 1988, 2403-2406.