79099-07-3
N-叔丁氧羰基-4-哌啶酮
+
25059-70-5
2-chloroethyl(dimethyl)sulfanium,iodide
→
~25%
143306-64-3
8-氧代-5-氮杂螺[2.5]辛烷-5-羧酸叔丁酯