(2S,3S)-3-{[tert-butyl(dimethyl)silyl]oxy}-2-methylpyrrolidin-5-one 、 4-bromo-2-chloro-3-methylbenzonitrile 、
Dicaesio carbonate 、
4,5-双二苯基膦-9,9-二甲基氧杂蒽 在
(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one;palladium 作用下,
以in the same manner as in Reference Example 3, the title compound was obtained as a colorless solid (yield: 505 mg, 74%)的产率得到2-chloro-4-[(4S,5S)-4-(tert-butyldimethylsilyloxy)-5-methyl-2-oxopyrrolidin-1-yl]-3-methylbenzonitrile