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Four New Cycloartane (=9,19-Cyclolanostane) Saponins from the Aerial Parts of Thalictrum fortunei

✍ Scribed by Hui Sun; Xian-Tao Zhang; Lei Wang; Xiao-Qi Zhang; Ying Wang; Si-Bao Chen; Pei-Gen Xiao; Wen-Cai Ye

Publisher
John Wiley and Sons
Year
2008
Tongue
German
Weight
174 KB
Volume
91
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The four new cycloartane (=9,19‐cyclolanostane) glycosides 1–4 were isolated from the aerial parts of Thalictrum fortunei (Ranunculaceae). The structures of these new glycosides were elucidated as (3__β__,16__β__,24__S__)‐cycloartane‐3,16,24,25,30‐pentol 3,25‐di‐β‐D‐glucopyranoside (1), (3__β__,16__β__,24__S__)‐24‐(acetyloxy)cycloartane‐3,16,25,30‐tetrol 3,25‐di‐β‐D‐glucopyranoside (2), (3__β__,16__β__,24__S__)‐24‐(acetyloxy)‐3‐(β‐D‐glucopyranosyloxy)cycloartane‐16,25,30‐triol 25‐[β‐D‐glucopyranosyl‐(1→6)‐β‐D‐glucopyranoside] (3), and (3__β__,16__β__,24__S__)‐24‐(acetyloxy)‐3‐(β‐D‐glucopyranosyloxy)cycloartane‐16,25,30‐triol 25‐[β‐D‐glucopyranosyl‐(1→4)‐β‐D‐glucopyranoside] (4). The structure elucidations were accomplished by 1D‐ and 2D‐NMR methods, HR‐ESI‐MS, and hydrolysis.

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## Abstract magnified image Four new 9,19‐cyclolanostane‐type triterpenes, 24‐__O__‐acetyl‐25‐anhydroshengmanol‐3‐__O__‐__β__‐D‐xylopyranoside (**1**), 25‐__O‐__butylcimigenol‐3‐__O__‐__β__‐D‐xylopyranoside (**2**), 12‐__β‐__hydrocimigenol‐3‐one (**3**), and 12‐__β‐__hydrocimigenol‐1‐en‐3‐one (**4