The Chemical Composition Of The Short The Calyx Instrument Mosaic

The leaves of Lysidice brevicalyx Wei is a traditional medicine used in China for the treatment of trauma,acesodyne,rheumatic arthritis and fractures by local folks for many years.The plant is widely distributed in Guangxi,Guangdong,Yunnan, Guizhou provinces and Hong Kong district of China.To our knowledge,no phytochemical investigation about this plant has been described in literature up to now.Separation of the Lysidice brevicalyx Wei by the group of Prof.Yu led to the isolation and structural elucidation of many new compounds.Some of them exhibited strong vasodilator and/or anti-oxidant activities,and some of them possessed unusual spirocyclic benzodihydrofuran and benzofurotetrahydrofuran skeleton. Further investigation on the EtOAC extract resulted in the isolation of 10 compounds by using various chromatographic methods,and the structures of them were elucidated by chemical and spectral methods.These compounds were elucidated as 2-O-[1-(3-methylbutyryl)phloroglucinol]-β-D-glucopynanoside(1),3-β-D-glucopyrano syloxy-4,5-dimethoxy-benzoic acid(2),benzyl alcohol O-β-D-glucopyranoside(3), polydatin(4),quercetin-3-α-L-rhamnopyranoside(5),ethyl gallate(6),Benzyl 6-O-α-L-arabino furanosyl-β-D-glucopynanoside(7),lisidiside X(8),lisidiside Y(9), lisidiside Z(10).All the compounds were isolated from this plant for the first time. Compound 2,3,5,6,7 were obtained from this genus for the first time,and compounds 8,9,10 were new compounds.