(3S,6S)-3,6-diisobutylpiperazine-2,5-dione; (3S,6S)-3,6-Bis(2-methylpropyl)-2,5-piperazinedione; (3S-cis)-3,6-Bis(2-methylpropyl)-2,5-piperazinedione; Cyclo(L-leucyl-L-leucyl); Cyclo(leucylleucine); Cyclo-L-Leu-L-Leu
(3S,6S)-3,6-diisobutylpiperazine-2,5-dione; (3S,6S)-3,6-Bis(2-methylpropyl)-2,5-piperazinedione; (3S-cis)-3,6-Bis(2-methylpropyl)-2,5-piperazinedione; Cyclo(L-leucyl-L-leucyl); Cyclo(leucylleucine); Cyclo-L-Leu-L-Leu