τ-regioselective addition of (-)-Nα -tert-butoxycarbonyl-L-histidine methyl ester to diethyl fumarate

1. López-Larrubia, P.
2. García-Amo, M.
3. Mayoral, E.P.
4. Gillies, R.J.
5. Cerdán, S.
6. Ballesteros, P.