Asymmetric synthesis of novel highly sterically constrained (2S,3S)-3- methyl-3-trifluoromethyl- and (2S,3S,4R)-3-trifluoromethyl-4- methylpyroglutamic acids

1. Soloshonok, V.A.
2. Cai, C.
3. Hruby, V.J.
4. Van Meervelt, L.