(3R,6S,3'S)/(3R,6S,3'R)-3,6-Dihydro-3-(1-hydroxy-1-phenylmethyl)-6-isopropyl-2,5-dimethoxypyrazin 在
盐酸 、
二乙胺基三氟化硫 作用下,
生成
2-Benzyl-5-isopropyl-3,6-dimethoxy-pyrazine 、 threo-methyl-3-fluorophenylalanate 、 threo-methyl-3-fluorophenylalanate 、 methyl (2R,3R)-β-fluorophenylalaninate