Reaction of trimethylsilylamines with N-Cbz-L-serine-β-lactone: A convenient route to optically pure β-amino-L-alanine derivatives
作者:Elaref S. Ratemi、John C. Vederas
DOI:10.1016/s0040-4039(00)78354-7
日期:1994.10
Trimethylsilylamines, Me3Si-NR2, react with N-Cbz-L-serine-β-lactone in acetonitrile primarily by alkyl oxygen cleavage of the lactone ring to give opticallypure N-Cbz-β-amino-L-alanine derivatives in good yields. Use of halogenated solvents such as chloroform alters the regiospecificity to give primarily acyl oxygen cleavage and generate amides of N-Cbz-L-serine. The latter are also obtained by reaction