ABSTRACT
OBJECTIVE: To study the chemical constitutents in Peucedanum medium var. gracile distributed in Guangxi. METHOD: Chromatography and spectral analysis were used to isolated and elucidate the constituents. RESULT: Eight compounds were isolated from the root of P. medium var. gracile and elucidated as isoimperatorin, phellopterin, bergapten, oxypeucedanin hydrate, byakangelicin beta-sitosterol, hamaudol and mannitol. CONCLUSION: Seven compounds were obtained from this plant for the first time.
Subject(s)
Apiaceae/chemistry , Coumarins/isolation & purification , Furocoumarins/isolation & purification , Methoxsalen/analogs & derivatives , Methoxsalen/isolation & purification , Plants, Medicinal/chemistry , 5-Methoxypsoralen , Coumarins/chemistry , Furocoumarins/chemistry , Methoxsalen/chemistryABSTRACT
Two compounds were isolated from Peucedanum longshengense Shan et Sheh for the first time. Their structures were identified as longshengensin A (I) and mannitol (II) by physico-chemical constants and spectral analyses (UV, IR, MS, NMR and 2D-NMR). I is a new compound with the structure of (-)-3' (s)-acetyloxy-4' (s)-angeloyloxy-3', 4'-dihydroseselin and named longshengensin A. Its absolute configurations were determined by chemical correlation with khellactone.
Subject(s)
Apiaceae/chemistry , Drugs, Chinese Herbal/chemistry , Plants, Medicinal/chemistry , Heterocyclic Compounds, 3-Ring/chemistry , Molecular Conformation , Molecular StructureABSTRACT
Four compounds were isolated from the traditional Chinese medicine "Difengpi", barks of Illicium difengpi K.I.B. et K.I.M. They were identified as 3 beta-O-acetyl-mangiferolic acid (I), mangiferonic acid (II), mangiferolic acid (III) and butulinic acid (IV) by physico-chemical constants and spectral analyses (UV, IR, EIMS, 1HNMR, 13CNMR, NOEDE and 2D NMR). Compound I is a new compound. These triterpene acids (I-IV) were isolated from Illicium genus for the first time.