Natural Product Research 2017-Aug
Cytotoxic coumaronochromones from the inflorescences of Celosia cristata.
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Abstract
Investigation on the MeOH extracts of the inflorescences of Celosia cristata led to the isolation of two new coumaronochromones, cristatone I (1) and cristatone II (2), along with three known flavones (3-5). Their structures were elucidated on the basis of spectroscopic analyses. Compounds 1-5 were tested for their cytotoxic activity against HeLa and BGC-823 cancer cell lines, of which cristatone II (2) showed interesting activity with the IC50 value of 23.82 μM.