2-氨基-2-甲基-1-丙醇

3,3,6,6-tetramethylpiperazine-2,5-dione

3,3,6,6-tetramethyl-1,2,3,6-tetrahydro-pyrazine

2,2,5,5-tetramethyl-2,5-dihydro-pyrazine

α-amino-isobutyraldehyde-oxime