Belostotskii A M, Genizi E, Hassner A
Chemistry Department, Bar-Ilan University, Ramat-Gan 52900, Israel.
Chem Commun (Camb). 2001 Oct 7(19):1960-1. doi: 10.1039/b106106m.
Unexpected cleavage of the macrocylic ring of secondary azacrown ethers when interacting with the Aib8 (Aib = alpha-aminoisobutyric acid) oxazolone indicates the possibility for a new mechanism of peptide racemization due to transformations of the oxazolones formed from the N-derivatives of alpha-amino acids in peptide synthesis.
当二级氮杂冠醚与Aib8(Aib = α-氨基异丁酸)恶唑酮相互作用时,大环发生意外裂解,这表明在肽合成中,由于由α-氨基酸的N-衍生物形成的恶唑酮发生转化,可能存在一种新的肽消旋机制。