2-甲基丙烯醛 、
(6S)-6-isopropyl-5-methoxy-3-methyl-3,6-dihydro-2-pyrazinyl methyl ether 生成 (2R,5S,1'S)-2,5-dihydro-2-(1-hydroxy-2-methyl-2-propenyl)-5-isopropyl-3,6-dimethoxy-2-methylpyrazine 、
(2R,5S,1'S)-2,5-dihydro-2-(1-hydroxy-2-methyl-2-propenyl)-5-isopropyl-3,6-dimethoxy-2-methylpyrazine 、 (2R,5S,1'S)-2,5-dihydro-2-(1-hydroxy-2-methyl-2-propenyl)-5-isopropyl-3,6-dimethoxy-2-methylpyrazine 、 (2R,5S,1'S)-2,5-dihydro-2-(1-hydroxy-2-methyl-2-propenyl)-5-isopropyl-3,6-dimethoxy-2-methylpyrazine