ENANTIOSELECTIVE SYNTHESIS OF CYCLOPROPANE ALPHA-AMINO-ACIDS - SYNTHESIS OF N-BOC-CIS-(2S,3R,4S)-3,4-METHANOPROLINE AND N-BOC-(2S,3R,4S)-3,4-METHANOGLUTAMIC ACID
I. Sagnard et al., ENANTIOSELECTIVE SYNTHESIS OF CYCLOPROPANE ALPHA-AMINO-ACIDS - SYNTHESIS OF N-BOC-CIS-(2S,3R,4S)-3,4-METHANOPROLINE AND N-BOC-(2S,3R,4S)-3,4-METHANOGLUTAMIC ACID, Tetrahedron letters, 36(18), 1995, pp. 3149-3152
The tide compounds were synthesized by a S-step facile transformation
of the key intermediate 4, itself obtained by a ''one-pot'' sulfone-me
diated cyclopropanation from chiral synthon (R)-I and (2R)-glycidyl tr
iflate.