1’-氧代-螺[环己基-1,3’(1’H)-呋喃并[3,4-c]吡啶]-4-羧酸

tert-butyl (1r,4r)-1'-oxo-1'H-spiro[cyclohexane-1,3'-furo[3,4-c]pyridine]-4-carboxylate

异烟酰苯胺

对环己酮甲酸乙酯