24424-99-5
二碳酸二叔丁酯
+
143617-94-1
→
~92%
143617-95-2
ethyl 2-[(2-methylpropan-2-yl)oxycarbonylamino]cyclopentane-1-carboxylate
110611-68-2
ethyl (1S,2R)-(-)-2-hydroxycyclopentanecarboxylate