Chemical constituents from Croton lauioides Radcl.-Sm. & Govaerts and their chemotaxonomic significance

Abstract

The phytochemical study of Croton lauioides Radcl.-Sm. & Govaerts led to the isolation of twenty-one compounds (1–21), including three diterpenoids (1–3), two triterpenoids (4–5), eight flavonoids (6–13), three lignans (14–16), four aromatic compounds (17–20), and one glycolipid (21). Their structures were determined by NMR spectroscopic analysis as well as comparison with previously reported data. All compounds (1–21) were isolated from C. lauioides for the first time, while twelve compounds 3, 5, 9–10, 12–18, and 21 were firstly isolated from the family Euphorbiaceae, and two compounds 2, and 20 were isolated from the genus Croton for the first time. Meanwhile, the chemotaxonomic significance of these isolated compounds from the whole plant of C. lauioides was also discussed.