Total synthesis of decarestrictine I and botryolide B via RCM protocol
作者:Palakodety Radha Krishna、T. Jagannadha Rao
DOI:10.1039/c004556j
日期:——
A convergent stereoselectivetotalsynthesis of decarestrictineI (1) and botryolide B (1a) invoking a common synthetic strategy is reported. The key steps are: ring-closing metathesis of epoxy dienoic esters obtained through the Yamaguchi esterification of their respective intermediates to furnish the respective Z-macrocycles (2 and 2a) which were further extrapolated to their respective targets.
Stereoselective Total Synthesis of Tarchonanthuslactone and Formal Synthesis of (-)-Colletol
作者:J. Yadav、P. Reddy、Manoj Gupta、Ch. Chary
DOI:10.1055/s-2007-990850
日期:2007.12
A simple and efficient stereoselective total synthesis of tarchonanthuslactone and formalsynthesis of (-)-colletol is described using as the key steps Jacobsen's kinetic resolution and a Sharpless asymmetric epoxidation. The synthesis of tarchonanthus- lactone and the seco acid proceeded in 14% and 13% overall yield, respectively, starting from chiral (R)-propylene oxide.