374794-85-1
1,1-dimethylethyl 4-hydroxymethyl-4-methanesulfonyloxymethyl-1-piperidinecarboxylate
→
~71%
240401-27-8
2-氧杂-7-二氮杂螺[3.5]壬烷-7-甲酸叔丁酯