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Keywords:

  • allylation;
  • antitumor agents;
  • asymmetric catalysis;
  • samarium;
  • total synthesis

Catalytic asymmetric allylation (CAA) using tributyl-(2-ethylallyl)stannane as a methyl ethyl ketone equivalent plays a key role in this synthesis of rhizoxin D. A subsequent substrate-directed acetal aldol reaction, fragment assembly by a modified Julia procedure, and directed electron transfer reduction are used to complete the synthesis (see scheme).