Chemical Constituents of Flowers of Stevia rebaudiana Bertoni
Chemical Constituents of Flowers of Stevia rebaudiana Bertoni
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DOI：
10.1271/bbb1961.47.133
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
Muchsin Darise;H. Kohda;K. Mizutani;R. Kasai;O. Tanaka
中科院分区：
文献类型：
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作者：
Muchsin Darise;H. Kohda;K. Mizutani;R. Kasai;O. Tanaka
甜菊叶（菊科）是巴拉圭的一种野生草本植物，作为天然甜味剂的来源引起了人们的广泛关注。除甜菊苷(1)、甜菊苷(1)外，近年来还从甜菊叶中分离到几种新的甜苷，如莱鲍迪苷-a(2)等(2)，以及labdane型二萜、jhanol(3)、austroinulin(4)及其6-0-乙酸酯(5)3。然而，文献中尚未出现对该植物花的化学成分的研究。本文从该植物的花中分离鉴定了1、2、3、4、5和一个新化合物(6)，即7-乙酸4。花的甲醇提取物被分离成醚溶部分和糖苷部分。通过柱层析得到四种结晶化合物A、B、C和D，收率分别为0.04、0.21、0.18和0.08%。通过
The leaves of Stevia rebaudiana Bertoni (Compositae), a wild herb of Paraguay, have attracted much attention as a source of natural sweeteners. Besides the major sweet glucoside, stevioside (1),1} several new sweet glycosides named rebaudioside-A (2), etc.2) as well as labdane type diterpenes, jhanol (3), austroinulin (4) and its 6-0-acetate (5)3) have been recently isolated from the leaves. However, no chemical study on the constituents of flowers of this plant has appeared in the literature. The present paper deals with the isolation and the identification of 1, 2, 3, 4, 5 and a new compound (6), the 7-acetate of 4, from flowers of this plant. The methanolic extract of the flowers was separated into an ether-soluble fraction and a glycoside fraction. The column chromatography of the ether-soluble fraction afforded four crystalline compounds A, B, C and D in yields of 0.04, 0.21, 0.18 and 0.08%, respectively. By