Intermediate and process for producing the antibacterial and antitumor agents LL-E33288 epsilon -I and LL-E33288Epsilon-Br

摘要

Processes for producing antibacterial and antitumor agents designated LL-E33288 epsilon -I and LL-E33288 epsilon -Br using triphenylphosphine at ice bath temperature are disclosed. Novel intermediates prepared in the processes are also disclosed.