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Publikováno v:
Chemistry of Natural Compounds. 48:562-564
The new chromone 5,7-dihydroxy-2-n-pentacosanylchromen-4-one (1) in addition to the three known compounds ursolic acid (2), tormentic acid (3), and beta-daucosterol (4) were isolated from seeds of Cydonia oblonga. Their structures were determined bas