First highly regio- and diastereoselective [3+2] cycloaddition of chiral nonracemic Fischer carbene complexes with azomethine ylides: An enantioselective synthesis of (+)-Rolipram

1. Barluenga, J.
2. Fernández-Rodríguez, M.A.
3. Aguilar, E.
4. Fernández-Marí, F.
5. Salinas, A.
6. Olano, B.