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Two New Aporphine Alkaloids from Litsea glutinosa

✍ Scribed by Jing-Hua Yang; Liang Li; Yun-Song Wang; Jing-Feng Zhao; Hong-Bin Zhang; Shi-De Luo

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
66 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Chemical examination of the BuOH extract of the leaves and twigs of Litsea glutinosa collected from Xishuangbanna resulted in the isolation of two new aporphine alkaloids, namely litseglutine A (1) and B (2), along with two known aporphine alkaloids, boldine (3) and laurolitsine (4). The structures of the new alkaloids have been elucidated on the basis of spectra analysis as 6‐demethyl‐9‐methoxy‐1,2‐(methylenedioxy)aporphin‐10‐ol (=6,7,7a,8‐tetrahydro‐10‐methoxy‐5__H__‐benzo[g]‐1,3‐benzodioxolo[6,5,4‐de]quinolin‐11‐ol; 1) and 1,10,11‐trimethoxyaporphin‐2‐ol (=5,6,6a,7‐tetrahydro‐1,10,11‐trimethoxy‐6‐methyl‐4__H__‐dibenzo[de,g]quinolin‐2‐ol; 2).

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