Tandem electrophilic and nucleophilic additions to bicyclic tert-butyldimethylsilyloxypyrrole derived from (S)-pyroglutaminol
摘要:
The silyloxypyrrole derivative 3, treated with SnCl4 and aqueous NaHCO3, afforded the 5-hydroxylated pyrrolidinone 7. This compound was shown to be a key intermediate for the diastereoselective introduction of other hetero- and C-nucleophiles at the same position. (C) 1999 Elsevier Science Ltd. All rights reserved.