CHEMICAL-CONSTITUENTS OF GENTIANACEAE .26. 2 NEW 1,3,5,6,7-PENTAOXYGENATED XANTHONES FROM CANSCORA-DECUSSATA

被引：8

作者：

GHOSAL, S

BISWAS, K

机构：

[1] Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutics, Banaras Hindu University, Varanasi

来源：

PHYTOCHEMISTRY | 1979年 / 18卷 / 06期

关键词：

1,5,7-trimetboxy-3,6-dihydroxyxanthone; 5-glucosyloxy-1,6-dihydroxy-3,7-dimethoxyxanthone; Canscora decussata; Gentianaceae; NOE of hydroxy-methoxyxanthones; ontogenic variation of xanthones; xanthone-O-glucoside;

D O I：

10.1016/S0031-9422(00)91471-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

One new pentaoxygenated free xanthone and a new pentaoxygenated xanthone-O-glucoside have been isolated and characterized from the flowering top of a fresh batch of Canscora decussata. The structure previously assigned to 'xanthone 9' has now been confirmed by application of NOE. The biochemical significance of xanthone formation and glucosidation in plants is appraised. © 1979.

引用

页码：1029 / 1031

页数：3

共 18 条

[1] MASS-SPECTROMETRY OF XANTHONES .1. ELECTRON-IMPACT-INDUCED FRAGMENTATION OF XANTHONE, MONOHYDROXYXANTHONE AND MONOMETHOXYXANTHONES [J].

ARENDS, P ;

HELBOE, P ;

MOLLER, J .

ORGANIC MASS SPECTROMETRY, 1973, 7 (06) :667-681

[2]

ARISAWA M, 1973, CHEM PHARM BULL, V21, P2562

[3]

BARROSCORREA DD, 1970, PHYTOCHEMISTRY, V9, P447

[4]

Barz W., 1975, FLAVONOIDS, P916, DOI DOI 10.1007/978-1-4899-2909-9_17

[5] SELECTIVE DEMETHYLATION OF POLYMETHOXYXANTHONES WITH AQUEOUS PIPERIDINE [J].

CHAUDHURI, RK ;

ZYMALKOWSKI, F ;

GHOSAL, S .

JOURNAL OF PHARMACEUTICAL SCIENCES, 1978, 67 (09) :1321-1322

[6] STUDIES ON CHEMICAL CONSTITUENTS OF CENTIANACEAE .1. XANTHONES OF CANSCORA-DECUSSATA SCHULT [J].

CHAUDHURI, RK .

PHYTOCHEMISTRY, 1971, 10 (10) :2425-+

[7] CHEMICAL CONSTITUENTS OF GENTIANACEAE .18. XANTHONES OF SWERTIA-BIMACULATA [J].

GHOSAL, S ;

SHARMA, PV ;

CHAUDHURI, RK .

PHYTOCHEMISTRY, 1975, 14 (12) :2671-2675

[8] CHEMICAL CONSTITUENTS OF GENTIANACEAE .23. TETRAOXYGENATED AND PENTAOXYGENATED XANTHONES AND XANTHONE O-GLUCOSIDES OF SWERTIA-ANGUSTIFOLIA BUCH-HAM [J].

GHOSAL, S ;

SHARMA, PV ;

JAISWAL, DK .

JOURNAL OF PHARMACEUTICAL SCIENCES, 1978, 67 (01) :55-60

[9] CHEMICAL CONSTITUENTS OF GENTIANACEAE .4. NEW XANTHONES OF CANSCORA-DECUSSATA [J].

GHOSAL, S ;

CHAUDHURI, RK ;

NATH, A .

JOURNAL OF PHARMACEUTICAL SCIENCES, 1973, 62 (01) :137-139

[10] CHEMICAL CONSTITUENTS OF GENTIANACEAE .12. STRUCTURE OF PENTAOXYGENATED XANTHONES OF CANSCORA-DECUSSATA SCHULT [J].

GHOSAL, S ;

CHAUDHURI, RK ;

MARKHAM, KR .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1974, (22) :2538-2541

← 1 2 →