作者:Connor L. Martin、Larry E. Overman、Jason M. Rohde
DOI:10.1021/ja803158y
日期:2008.6.18
The first total synthesis of (±)-actinophyllic acid (1) is reported. Key steps of this synthesis include an intramolecular oxidative coupling of ketone and malonicester enolates and an aza-Cope−Mannich rearrangement that assembled the core structure of the natural product’s unique ring system. The synthesis was accomplished from di-tert-butyl malonate in 8% overall yield by a concise sequence that
Total Synthesis of (±)- and (−)-Actinophyllic Acid
作者:Connor L. Martin、Larry E. Overman、Jason M. Rohde
DOI:10.1021/ja100178u
日期:2010.4.7
acid upon exposure to HCl and paraformaldehyde. This concisesecond-generation total synthesis of (+/-)-actinophyllic acid is realized in 22% overall yield from commercially available di-tert-butyl malonate and o-nitrophenylacetic acid by a sequence that proceeds by way of only six isolated intermediates. The first enantioselective total synthesis of (-)-actinophyllic acid (1) is accomplished by this