Enantio- and stereocontrolled formation of the bisspiroacetal core of spirolide B
摘要:
The bisspiroacetal core of spirolide B, a marine natural toxin, was synthesized from triketone 10 via one-step bisspiroacetalization, methylation, and silylation accompanied by isomerization of the C-15 spirocenter. The equilibrium of two isomers under acidic conditions was also examined. (C) 2004 Elsevier Ltd. All rights reserved.
Enantio- and stereocontrolled formation of the bisspiroacetal core of spirolide B
摘要:
The bisspiroacetal core of spirolide B, a marine natural toxin, was synthesized from triketone 10 via one-step bisspiroacetalization, methylation, and silylation accompanied by isomerization of the C-15 spirocenter. The equilibrium of two isomers under acidic conditions was also examined. (C) 2004 Elsevier Ltd. All rights reserved.
The bisspiroacetal core of spirolide B, a marine natural toxin, was synthesized from triketone 10 via one-step bisspiroacetalization, methylation, and silylation accompanied by isomerization of the C-15 spirocenter. The equilibrium of two isomers under acidic conditions was also examined. (C) 2004 Elsevier Ltd. All rights reserved.