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2004
Pyrrole derivatives
R 0120
Enantio- and Diastereoselective Synthesis of 2,5-Disubstituted Pyrrolidines
a Multicomponent Ugi Reaction and Their Transformation into Bicyclic
50- 068 Through
Scaffolds. — Chiral 2,5-disubstituted pyrrolidines (IV) and (V) are prepared through
a three-component Ugi-reaction with enantiopure cyclic imines (I). However, the diastereoselectivity of the reaction is not very attractive. The products can be further transformed to pharmacologically interesting bicyclic lactones. — (BANFI, L.; BASSO,
A.; GUANTI, G.; RIVA*, R.; Tetrahedron Lett. 45 (2004) 35, 6637-6640; Dip. Chim.
Chim. Ind., Univ. Genova, I-16146 Genova, Italy; Eng.) — Mais
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