1197815-66-9
1-(1-叔丁基-4-羟基-1H-吡唑-3-基)乙酮
+
79099-07-3
N-叔丁氧羰基-4-哌啶酮
→
~82%
1197815-67-0
tert-butyl 2-tert-butyl-7-oxospiro[6H-pyrano[3,2-c]pyrazole-5,4'-piperidine]-1'-carboxylate