Extending Pummerer reaction chemistry. Application to the oxidative cyclization of tryptophan derivatives.

@article{Feldman2004ExtendingPR,
  title={Extending Pummerer reaction chemistry. Application to the oxidative cyclization of tryptophan derivatives.},
  author={Ken S. Feldman and Andrew G Karatjas},
  journal={Organic letters},
  year={2004},
  volume={6 17},
  pages={2849-52}
}
The diastereoselective oxidative cyclization of a beta-oxygenated tryptophan derivative is reported. This process, which utilizes a new variant of the Pummerer reaction, may have application in TMC-95A synthesis.