126325-47-1
2-溴-5-氨基-6-甲基吡啶
→
~61%
897732-75-1
2-甲基-6-(甲基磺酰基)吡啶-3-胺
20277-69-4
甲烷亚磺酸钠
+
~50%
66799-59-5
6-methanesulfonyl-2-methyl-3-nitro-pyridine
~46%