Xd. Lin et al., Utilization of Fukuyama's sulfonamide protecting group for the synthesis of N-substituted alpha-amino acids and derivatives, TETRAHEDR L, 41(18), 2000, pp. 3309-3313
A novel and general route for the solid phase synthesis of N-substituted al
pha-amino acids has been developed. This synthesis employs Fukuyama's 2-nit
robenzenesulfonamide protecting group for preparation of secondary amines.
The versatility of this methodology is demonstrated by the facile synthesis
of a trisubstituted diketopiperazine (DKP) skeleton. (C) 2000 Elsevier Sci
ence Ltd. All rights reserved.