Nasimaluns A and B:: neo-clerodane diterpenoids from Barringtonia racemosa

被引：17

作者：

Hasan, CM ^{[1
]}

Khan, S ^{[1
]}

Jabbar, A ^{[1
]}

Rashid, MA ^{[1
]}

机构：

[1] Univ Dhaka, Fac Pharm, Phytochem Res Lab, Dhaka 1000, Bangladesh

来源：

JOURNAL OF NATURAL PRODUCTS | 2000年 / 63卷 / 03期

关键词：

D O I：

10.1021/np990488l

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

An ethanolic extract of the roots of Barringtonia racemosa afforded two novel neo-clerodane-type diterpenoids, methyl-15,16-epoxy-12-oxo-3,13(16),14-neo-clerodatrien-18,19-olide-17-carboxylate (nasimalun A, 1) and dimethyl-15,16-epoxy-3,13(16),14-neo-clerodatrien-17,18-dicarboxylate (17-carboxymethylhardwickiic acid methyl eater, nasimalun B, 2) by NMR and MS analyses and by comparison of their spectral data with related compounds. The relative stereochemistry of the asymmetric centers in 1 and 2 was determined by selective 1D NOESY experiments.

引用

页码：410 / 411

页数：2

共 14 条

[1] BARRINGTOGENOL AND BARRINGTOGENIC ACID, 2 NEW TRITERPENOID SAPOGENINS [J].

ANANTARAMAN, R ;

PILLAI, KSM .

JOURNAL OF THE CHEMICAL SOCIETY, 1956, (NOV) :4369-4373

[2] NATURALLY OCCURRING TERPENE DERIVATIVES, .81. FURTHER CONSTITUENTS OF REPRESENTATIVES FROM EUPATORIUM GROUP [J].

BOHLMANN, F ;

ZDERO, C ;

GRENZ, M .

CHEMISCHE BERICHTE-RECUEIL, 1977, 110 (03) :1034-1041

[3] Isolation and synthesis of a new clerodane from Echinodorus grandiflorus [J].

Costa, M ;

Tanaka, CMA ;

Imamura, PM ;

Marsaioli, AJ .

PHYTOCHEMISTRY, 1999, 50 (01) :117-122

[4] NEOCLERODANE DITERPENOIDS FROM BACCHARIS-MACRAEI [J].

GAMBARO, V ;

CHAMY, MC ;

GARBARINO, JA ;

SANMARTIN, A ;

CASTILLO, M .

PHYTOCHEMISTRY, 1986, 25 (09) :2175-2177

[5]

GUINCHARD A, 1999, BOOK ABSTRACTS, P10

[6]

Hooker J.D., 1961, FLORA BRIT INDIA, V2, P507

[7] THE CHEMISTRY OF DODONAEA SPP .8. ISOLATION AND CRYSTAL-STRUCTURE OF A DITERPENE ACID FROM DODONAEA-PETIOLARIS [J].

JEFFERIES, PR ;

PAYNE, TG ;

RASTON, CL ;

WHITE, AH .

AUSTRALIAN JOURNAL OF CHEMISTRY, 1981, 34 (05) :1001-1007

[8] Absolute stereochemistry of tanabalin, an insect antifeedant clerodane from Tanacetum balsamita [J].

Kubo, I ;

Jamalamadaka, V ;

Kamikawa, T ;

Takahashi, K ;

Tabata, K ;

Kusumi, T .

CHEMISTRY LETTERS, 1996, (06) :441-442

[9]

NADKARNI KM, 1982, INDIAN MAT MEDICA, V1, P177

[10] REARRANGED CUPARANE-TYPE SESQUITERPENOIDS AND CLERODANE-TYPE DITERPENOIDS FROM THE LIVERWORT DEMOTARISIA-LINGUIFOLIA [J].

NAGASHIMA, F ;

ASAKAWA, Y .

PHYTOCHEMISTRY, 1990, 29 (10) :3229-3231

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