2,7-ditert-butyl-4,5,9,10-tetrahydropyrene

2-ethoxy-7-tert-butyl-4,5,9,10-tetrahydropyrene

1-bromo-2-ethoxy-7-tert-butyl-4,5,9,10-tetrahydropyrene

1-乙基哌啶-2-羧酸

异丙基脲