(3S,6S)-1,4-diacetyl-3-deuterio-6-propan-2-ylpiperazine-2,5-dione;(3S,6S)-1,4-diacetyl-3-deuterio-6-isopropyl-piperazine-2,5-dione;(3S,6S)-1,4-diacetyl-3-deuterio-6-isopropylpiperazine-2,5-dione;(3S,6S)-1,4-diacetyl-3-deuterio-6-isopropyl-piperazine-2,5-quinone;(3S,6S)-3-deuterio-1,4-diethanoyl-6-propan-2-yl-piperazine-2,5-dione
(3S,6S)-1,4-diacetyl-3-deuterio-6-propan-2-ylpiperazine-2,5-dione