• Sonuç bulunamadı

香水樹生物鹼成份研究 Studies on the alkaloids of cananga odorata

N/A
N/A
Protected

Academic year: 2021

Share "香水樹生物鹼成份研究 Studies on the alkaloids of cananga odorata"

Copied!
1
0
0

Yükleniyor.... (view fulltext now)

Tam metin

(1)

香水樹生物鹼成份研究

Studies on the alkaloids of cananga odorata

中文摘要

香水樹(Cananga odorata Hook.f.et Thomson)屬於蕃荔枝科(Annonaceae)之常綠喬 木。在國內外民間藥用以治療瘧疾,頭皮屑和癬。有關抗癌性蕃荔枝科植物成分 研究在國外相當積極。 繼續對本科植物做系統的研究以詳細追查本植物有效成爲 分,並提供植物化學成分分類、生合成和生物活性的研究資料,開始本植物生物 鹼成份研究。

有關本植物過去曾分離出

oxoushinsunine(I),roemerine(II),anonaine(III),ushinsunine(IV),eupolauridine(

canangine)(V),和 sampangine(VI)。今從台灣產本植物分離出(I),(II),(IV)三種 成分外,尚發現有ushinsunine N-oxide(VII),reticuline(VIII),coreximine(IX)。其 中(VII)證實為ㄧ新鹽基。另外合成 O-methyl ushinsunine(X)及 O-methyl

michelalbine(XI)。(I)及(III)已被證實具有細胞毒和抗菌作用。

以上幾種成分中,(IV)被認為是(I)之前驅物質;(VIII)是(IX)之前驅物質。合成的 (X),(XI)新鹽基雖尚未在天然界發現,但存在之可能性很大。另外在生物鹼性 成分分離過程中,由薄層色曾分析中也有發現(II)的存在。以上成份將提供抗菌、

抗腫瘤作用試驗。

Referanslar

Benzer Belgeler

具有如抗發炎,腫瘍,降低 urea nitrogen(BUN),血糖,血壓等多樣性之生

The mechanisms of nicotine- induced carcinogenesis were demonstrated in our recent report (Toxicology and Applied Pharmacology, 2004, in press) indicated as specific binding

 先前有許多文獻指出吸煙是引發肺癌的重要因子之ㄧ (1,2) 。我們在先前 (Tox icology and Applied Pharmacology, 2004)

 Case-control study was conducted to explore the relationships among tobacco carcinogen NNK metabolites (Free NNAL 、 Total NNAL 、 HA 、 N7-MeG), genetic polymorphisms of

Results demonstrat e that release behavior of lidocaine from chitosan and carbopol hydrogel was dependent on time, pH value, drug form, loading content of drug, and type

有關本植物葉部成分,曾分離出 oxoushinsunine(Ⅰ)、magnolamine (Ⅲ)、magn oline (Ⅳ)、magnocurarine

[r]

Antitumor activity of extract against EAC tumor bearing mice was assessed by the parameters such as tumor volume, tumor weight, cell count (viable and non viable), mean survival