21739-93-5
2-溴-5-氯苯甲酸
+
17238-53-8
piperidine-1-carboximidamide,sulfuric acid
→
~91%
61741-51-3
6-chloro-2-piperidin-1-yl-1H-quinazolin-4-one
110-89-4
哌啶
20028-68-6
2,4,6-三氯喹唑啉
~86%