Acetylcholinesterase Inhibitors from Angelica polymorpha Stem
2017
Kwon, Y., Kangwon National University, Chuncheon, Republic of Korea | Kim, H.P., Kangwon National University, Chuncheon, Republic of Korea | Kim, M.J., Kangwon National University, Chuncheon, Republic of Korea | Chun, W., Kangwon National University, Chuncheon, Republic of Korea
Fourteen compounds were isolated from the stem of Angelica polymorpha. On the basis of spectral data, these compounds were identified as isoimperatorin (1), phellopterin (2), bergapten (3), xanthyletin (4), cnidilin (5), geijerine (6), ( - )-3'-acetyl hamaudol (7), 7-demethylsuberosine (8), dehydrogeijerin (9), ( - )-hamaudol (10), (+)-visamminol (11), divaricatol (12), scopoletin (13), and decursidate (14), respectively. Among them, compounds 4 - 6, 8, 9, 13, and 14 were isolated for the first time from A. polymorpha. Dehydrogeijerin (6) and geijerin (9) were isolated for the first time from genus Angelica. All isolates tested for inhibitory activity against acetylcholinesterae. Compounds 1 to 13 showed acetylcholinesterase inhibitory activity with IC50 values ranging from 1.4 to 37.5 micrometer.
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