β-Nitro-α-amino acids as latent α,β-dehydro-α-amino acid residues in peptides
摘要:
Peptides containing alpha,beta-dehydro-alpha-amino acid residues are readily prepared by incorporating beta-nitro-alpha-amino acids at the corresponding positions, followed by elimination of nitrous acid. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis of side-chain functionalized amino acid derivatives through reaction of alkyl nitronates with α-bromoglycine derivatives
摘要:
Reactions of alkyl nitronates with alpha-bromoglycine derivatives provide access to a variety of halo-, beta-nitro- and alpha,beta-dehydro-alpha-amino acid derivatives, including beta-functionalized alpha,beta-dehydroamino acid derivatives. The hydrochloride salts of free beta-nitro-alpha-amino acids can also be prepared using this approach.