2 methylchromone/neoplasms

A new chromone glycoside, 8-O-β-D-Glucopyranosyl-2-methylchromone (1), together with eight known compounds (2-9) were isolated from the Tibetan medicine plant of Swertia punicea. All compounds of this plant were reported for the first time. The structures of

Phytochemical investigation of Cassia petersiana Bolle leaves afforded four new compounds, including two chromone derivatives, 7-acetonyl-5-hydroxy-2-methylchromone (petersinone 1, 1) and 7-(propan-2'-ol-l'-yl)-5-hydroxy-2-methylchromone (petersinone 2, 2), two benzoic acid derivatives,

Four new chromone alkaloids, chrotacumines A-D (1-4), consisting of a 5,7-dihydroxy-2-methylchromone, an N-Me piperidine ring, and an ester side chain were isolated from Dysoxylum acutangulum, and their structures including absolute configurations were elucidated on the basis of spectroscopic data

Phytochemical investigation of the cytotoxic fractions of fresh bulbs of Pancratium maritimum L. led to the isolation and structure identification of two new compounds, pancricin (1) and pancrichromone (4), together with four known compounds, including 2,4-dihydroxy-6-methoxy-3-methyl acetophenone

Chemical investigation of the stems of Seseli praecox (Gamisans) Gamisans, an endemic Apiaceae from Sardinia, afforded an isopropenylated chromone (5-hydroxy-6-(2-Z-butenyl-3-hydroxymethyl)-7-methoxy-2-methylchromone), along with four known linear furocoumarins and their natural precursor. For

2-Styrylchromones, which are relatively scarce in nature, have been reported to possess potent cytotoxicities on KB cell line. Lavendustin A, a metabolite of Streptomyces griseolavendus, has been shown to inhibit a growth of A431 cell line. Accordingly, a series of compounds 3a-g having structural