33471-40-8
4-甲基-3(2H)-哒嗪酮
→
~75%
68206-04-2
3-氯-4-甲基哒嗪
105537-87-9
4-methyl-4,5-dihydro-3(2H)-pyridazinone
105537-47-1
ethyl 2-methyl-4,4-diethoxybutanoate
61892-47-5
3-甲基-4-羟基-4-丁内酯