Polyoxygenated Seco-cyclohexene Derivatives from Uvaria tonkinensis var. subglabra

AimTo study the chemical constituents from the twigs of Uvaria tonkinensis var. subglabra.MethodsCompounds were obtained by silica gel chromatography, and their structures were assigned by spectroscopic methods.ResultsTwo new polyoxygenated seco-cyclohexenes, namely uvarisubols A (1) and B (2), along with seven known compounds zeylenol, 1,6-desoxypipoxide, 1-epizeylenol, uvamalol G, uvarirufol C, uvamalol F and ferrudiol, were isolated and structurally elucidated.ConclusionUvarisubols A and B are two new polyoxygenated seco-cyclohexene analogues.