Synthesis of novel boron containing unnatural cyclic amino acids as potential therapeutic agents
摘要:
Two boronated alpha -amino acids, 1-amino-3-boronocyclopentanecarboxylic acid and 1-amino-3-boronocycloheptanecarboxylic acid were prepared. The key step in the syntheses was the 1,4-boration of the alpha,beta -unsaturated cyclic ketones using the bis-pinacolatodiboron ester to generate the boronated ketones which were then converted to the corresponding amino acids. (C) 2001 Elsevier Science Ltd. All rights reserved.