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. 2023 Jan 11;13:1085309. doi: 10.3389/fphar.2022.1085309

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Copyright © 2023 Lai, Yang, zhang, Zhuang, Ma, Lin, Zeng and Yin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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AC isolated from the Alstonia yunnanensis Diels root. (A) The extraction and isolation process of AC. (B) Experimental ECD spectra of AC, and the absolute configuration is 19(s), 20(s) -Acetoxytabernosine.