(3S,6S)-3-methyl-6-propan-2-ylpiperazine-2,5-dione;(3S,6S)-3-isopropyl-6-methyl-piperazine-2,5-dione;(3S,6S)-3-isopropyl-6-methylpiperazine-2,5-dione;(3S,6S)-3-isopropyl-6-methyl-piperazine-2,5-quinone;(3S,6S)-3-methyl-6-propan-2-yl-piperazine-2,5-dione
(3S,6S)-3-methyl-6-propan-2-ylpiperazine-2,5-dione