29943-42-8
四氢吡喃酮
+
17356-08-0
aminothioamide
→
~46%
623931-31-7
6,7-二氢-4H-吡喃并[4,3-D]噻唑-2-胺盐酸盐
24265-21-2
4-chloro-3,6-dihydro-2H-pyran
160427-98-5
3-氯-四氢-吡喃-4-酮