Convergent Assembly of the Spiroacetal Subunit of Didemnaketal B
作者:Haruhiko Fuwa、Sayaka Noji、Makoto Sasaki
DOI:10.1021/ol1024713
日期:2010.11.19
A highly convergent synthesis of the C9-C28 spiroacetal subunit of didemnaketal B has been accomplished. Assembly of the C9-C15 alkylborate and C16-C21 enol phosphate by means of Suzuki-Miyaura coupling and acid-catalyzed cyclization of the derived dihydroxy enol ether enabled a rapid and efficient construction of the spiroacetal subunit. The C22-C28 side chain was incorporated via Nozaki-Hiyama-Kishi coupling to complete the synthesis.
The Use of COP-OAc in the Catalyst-Controlled Syntheses of 1,3-Polyols
作者:Stefan Kirsch、Philipp Klahn、Helge Menz
DOI:10.1055/s-0031-1289574
日期:2011.11
Elongation via RCM (Cycle A) 2.2 TotalSynthesis of Rugulactone 2.3 Chain Elongation via Ando Olefination (Cycle B) and Total Syntheses of Polyrhacitides A and B 2.4 Useful Variants 3 Conclusions polyols - palladium - catalysis - natural products - esters