2-乙基-2,6,6-三甲基哌啶-4-酮

2,2,4,6-tetramethyl-1H-pyridine

2-甲基戊烷-2,4-二胺

N3-isopropyl-1,1,3-trimethyl-propanediyldiamine

2,2,4,6-四甲基哌啶