Enantiopure bis-beta-amino acids (5a-c) were prepared from chiral bis-sulfinimines (3a-c) in >97% ee via stereoselective addition of the sodium enolate of methyl acetate followed by hydrolysis. (C) 1998 Elsevier Science Ltd. All rights reserved.
Enantiopure bis-beta-amino acids (5a-c) were prepared from chiral bis-sulfinimines (3a-c) in >97% ee via stereoselective addition of the sodium enolate of methyl acetate followed by hydrolysis. (C) 1998 Elsevier Science Ltd. All rights reserved.