Asymmetric total syntheses of panaxytriol and panaxydol, potent antitumor agents from Panax ginseng
摘要:
A stereoselective syntheses of panaxytriol 1 and panaxydol 2 from D-arabinose using base induced double elimination of 4,5-O-isopropylidene propargyl chloride as a key step is described. (C) 2002 Elsevier Science Ltd. All rights reserved.
A highly efficient and practical method for the synthesis of chiral polyhydroxy diacetylenic alcohols
摘要:
An efficient protocol for the synthesis of chiral polyhydroxy diacetylenic alcohols from chiral 4,5-O-isopropylidene propargyl chlorides using strong bases is described and is useful for the synthesis of biologically active natural products. (C) 2001 Elsevier Science Ltd. All rights reserved.