1. Mann FG (1970) The heterocyclic derivatives of phosphorus, arsenic, antimony, and bismut, 2nd edn. Wiley, New York
2. Williams ML, Wainer IW (1999) Curr Pharm Des 5:665–672
3. Ludeman SM (2000) In: Torrence PF (ed) Biomedical chemistry. Wiley, New York, pp 163–187
4. Afarinkia K, Twist AJ, Yu H (2004) J Org Chem 69:6500–6503
5. Pedrosa R, Maestro A, Pérez-Encabo A, Raliegos R (2004) Synlett:1300–1302