A new approach to vinyl glycine derivatives from (+)-(R S)-3-[(p- toluenesulfinyl)methyl]-1-oxa-4-azaspiro[4,5]decen-3-ene

1. Acherki, H.
2. Alvarez-Ibarra, C.
3. García-Navazo, G.
4. Gómez-Sánchez, E.
5. Quiroga-Feijóo, M.L.