1120-87-2
4-溴吡啶
→
352445-70-6
3-(吡啶-4-基)-3,9-二氮杂螺[5.5]十一烷
336190-91-1
tert-butyl 9-(pyridin-4-yl)-3,9-diazaspiro[5.5]undecane-3-carboxylate