C-terminal L-Ala-L-Leu-L-valinamide-N-CH=CH-S residue
c-terminal l-ala-l-leu-l-valinamide-n-ch=ch-s residue
An organoheteryl group derived from <small>L</small>-Ala-<small>L</small>-Leu-<small>L</small>-valinamide-<em>N</em>-CH=CH-S.