3-酞酰亚胺基丙酸甲酯 、 triethyloxonium fluoroborate 、
2-溴甲基萘 生成 (3S,6R)-2,5-Diethoxy-3,6-dimethyl-3-(2-methylnaphthyl)-3,6-dihydropyrazin 、
(3S,6S)-2,5-Diethoxy-3,6-dimethyl-3-(2-methylnaphthyl)-3,6-dihydropyrazin 、 (3R,6R)-2,5-Diethoxy-3,6-dimethyl-3-(2-methylnaphthyl)-3,6-dihydropyrazin 、
(3R,6S)-2,5-Diethoxy-3,6-dimethyl-3-(2-methylnaphthyl)-3,6-dihydropyrazin