N,N-二苄基-2-溴乙胺 、
2-Tert-butyl-3,6-dimethoxy-2,5-dihydropyrazine 在
1,3-二甲基-2-咪唑啉酮 、
正丁基锂 作用下,
生成 (2R,5S)-2-tert-butyl-5-<2-(dibenzylamino)ethyl>-2,5-dihydro-3,6-dimethoxypyrazine 、 (2R,5S)-2-tert-butyl-5-<2-(dibenzylamino)ethyl>-2,5-dihydro-3,6-dimethoxypyrazine 、 (2R,5S)-2-tert-butyl-5-<2-(dibenzylamino)ethyl>-2,5-dihydro-3,6-dimethoxypyrazine 、 (2R,5S)-2-tert-butyl-5-<2-(dibenzylamino)ethyl>-2,5-dihydro-3,6-dimethoxypyrazine