Banwell, M. G.; Edwards, A. J.; Essers, M.; Jolliffe, K. A. Conversion of (−)-3-Dehydroshikimic Acid into Derivatives of the (+)-Enantiomer. The Journal of Organic Chemistry. 2003, 68 (17): 6839–6841. PMID 12919063. doi:10.1021/jo034689c.
Banwell, M. G.; Edwards, A. J.; Essers, M.; Jolliffe, K. A. Conversion of (−)-3-Dehydroshikimic Acid into Derivatives of the (+)-Enantiomer. The Journal of Organic Chemistry. 2003, 68 (17): 6839–6841. PMID 12919063. doi:10.1021/jo034689c.