甜菊新型二萜糖苷的结构。
Structures of the novel diterpene glycosides from Stevia rebaudiana.
机构信息
The Coca-Cola Company, Organic Chemistry Department, Research and Technology, One Coca-Cola Plaza, Atlanta, GA 30313, USA.
出版信息
Carbohydr Res. 2011 Jun 1;346(8):1057-60. doi: 10.1016/j.carres.2011.03.025. Epub 2011 Mar 23.
From the commercial extract of the leaves of Stevia rebaudiana, two new diterpenoid glycosides were isolated besides the known steviol glycosides including stevioside, rebaudiosides A-F, rubusoside, and dulcoside A. The structures of the two new compounds were identified as 13-[(2-O-6-deoxy-β-d-glucopyranosyl-β-d-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-d-glucopyranosyl ester (1), and 13-[(2-O-6-deoxy-β-d-glucopyranosyl-3-O-β-d-glucopyranosyl-β-d-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-d-glucopyranosyl ester (2), on the basis of extensive NMR and MS spectral data as well as chemical studies.
从甜叶菊（Stevia rebaudiana）的商业提取物中，除了已知的甜菊糖苷（包括甜菊苷、莱鲍迪苷 A-F、毛蕊花糖苷和杜尔可苷 A）外，还分离到两种新的二萜糖苷。这两种新化合物的结构被鉴定为 13-[(2-O-6-去氧-β-d-吡喃葡萄糖基-β-d-吡喃葡萄糖基)氧基]ent-贝壳杉-16-烯-19-酸 β-d-吡喃葡萄糖基酯（1）和 13-[(2-O-6-去氧-β-d-吡喃葡萄糖基-3-O-β-d-吡喃葡萄糖基-β-d-吡喃葡萄糖基)氧基]ent-贝壳杉-16-烯-19-酸 β-d-吡喃葡萄糖基酯（2），这是基于广泛的 NMR 和 MS 光谱数据以及化学研究。
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