117249-50-0Relevant academic research and scientific papers
A NEW ROUTE TO (Z)-3-ALKYLIDENE-(S)-6-ALKYL-2,5-PIPERAZINEDIONES VIA N-CARBOXY-α-DEHYDROAMINO ACID ANHYDRIDES
Shin, Chung-gi,Yonezawa, Yasuchika,Ogawa, Kazumichi
, p. 2087 - 2089 (2007/10/02)
A new synthetic method for (Z)-3-alkylidene-(S)-6-alkyl-2,5-piperazinediones was accomplished by the coupling of N-carboxy-α-dehydroamino acid anhydrides with Boc-α-amino acid, followed by the deprotection of Boc group and by the ring expansion.
