Financial support from the National Natural Science Foundation of China(Nos.81502942 and 81630094)
Gastradefurphenol(1),a minor 9.9'-neolignan with a novel carbon skeleton substituted by two phydroxybenzyls was isolated from an aqueous extract of the Gastrodia elata rhizomes(tian ma).Its structure was determin...
Financial support from the National Natural Science Foundation of China(NNSFC;Nos.81630094 and 30825044)
A rare arcutine-type C_(20)-diterpenoid alkaloid, named aconicarmicharcutinium A and obtained as hydroxide(1) and trifluoroacetate(1a), was characterized as a minor constituent of "fu zi"(the lateral roots of...
Howiinol A, an active antitumor constituent from the root and stem bark of Goniothamus howii Meer. (Annoaceae) has been synthesized in nine steps from alpha - D - glucoheptonic gamma - lactone with an overall yield of...
A bioactive constituent (E)-1, 5-his (3'4'-driethoxyphenyl) pent-4-en-1-yne from theHypoxis rooperi and its bomologue, were convebotly synthesized through the copper(I) catalyst couplingreaction of terminal alkyne und...
The constituent of the active catalyst for cyclopropanation catalyzed by Cu (Ⅱ)complexes was determined to be copper ion: chiral bidentate ligand=1:1 on the basis of mole ratio method.