Diastereoselective synthesis of 2-amino-4-phosphonobutanoic acids by electrophilic substitution and tin-Peterson olefination of bis-lactim ethers derived from cyclo-[L-AP4-D-Val]

1. Fernández, M.C.
2. Díaz, A.
3. Guillín, J.J.
4. Blanco, O.
5. Ruiz, M.
6. Ojea, V.