3-Chloro-6-ethyl-5-methyl-pyrazine-2-carbonitrile 、
3-Chloro-5-ethyl-6-methyl-pyrazine-2-carbonitrile 、
2,3,4,5-四氢-1H-苯并[D]氮杂卓(盐酸盐) 、
N,N-二异丙基乙胺 、 在
乙酸乙酯 、
magnesium sulfate 、 silica gel 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 78.0h,
以giving 0.086 g (0.29 mmol, 18% of theory) of the 6-ethyl-5-methyl-3-(1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-pyrazine-2-carbonitrile as yellowish solid的产率得到6-ethyl-5-methyl-3-(1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-pyrazine-2-carbonitrile