Enantioselective Total Synthesis of Spirofungins A and B
作者:Michael T. Crimmins、Elizabeth A. O’Bryan
DOI:10.1021/ol101961c
日期:2010.10.1
The enantioselective total synthesis of spirofungins A (1) and B (2) is reported in 14 steps over the longest linear sequence. Key steps include the use of thiazolidinethione-mediated aldol reactions to assemble the major fragments and installation of the C1-C6 side chain using a cross metathesis reaction.
Total Synthesis of (−)‐Salinosporamide A via a Late Stage C−H Insertion
作者:Hadi Gholami、Aman Kulshrestha、Olivia K. Favor、Richard J. Staples、Babak Borhan
DOI:10.1002/anie.201900340
日期:2019.7.22
The synthesis of (−)‐salinosporamide A, a proteasome inhibitor, is described. The synthesis highlights the assembly of a densely decorated pyrrolidinone core via an aza‐Payne/hydroamination sequence. Central to the success of the synthesis is a late‐stage C−H insertion reaction to functionalize a sterically encumbered secondary carbon. The latter functionalization leads to an enabling transformation