Abstract:
:Seventeen undescribed heterodimers of meroterpene phenol, psocorylins A-Q, were isolated from the fruits of Psoralea corylifolia. Their another monomeric unit derived from flavonone, chalcone, coumarin and isoflavone, respectively. Psocorylins A-E were rare natural spiroketals with the skeleton of 1,4,8-trioxaspiro[4.5]decane deriving from flavonone, and their plausible biosynthetic pathways were proposed. These structures were established by spectroscopic methods. Their absolute configurations were assigned via single-crystal X-ray diffraction, electronic circular dichroism (ECD) calculations and Rh2(OCOCF3)4-induced ECD spectra. Psocorylins B-E, F, M and Q exhibited potent cytotoxic activities against different kinds of tumor cells with IC50 values less than 10 μM.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Xu QX,Zhang YB,Liu XY,Xu W,Yang XWdoi
10.1016/j.phytochem.2020.112394subject
Has Abstractpub_date
2020-08-01 00:00:00pages
112394eissn
0031-9422issn
1873-3700pii
S0031-9422(19)31244-0journal_volume
176pub_type
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