日期:2023-04-21 18:10
状态:待解决
提问:kjcxac
column chromatography, preparative high performance liquid chromatography and recrystallization. Their structures were established on the basis of NMR, MS spectraoscopic analyses and comparison with lirerature date. The results were as follows: A total of 14 compounds were isolated from the active part and identified as hydroxydihydrobovolide(1), raspberry ketone(2), salicyl alcohol(3), 4-hydroxyl-acetophenone(4), 4-hydroxybenzaldehyde(5), ethyl caffeate(6), ferulaldehyde(7), isoscopletin(8), 3,
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