1-(3-chlorophenyl)-3-trimethylsilyloxy-2-aza-1,3-butadiene 以
甲苯 为溶剂,
生成 rac-(2'R,3S,4'R)-4'-(tert-butyl)-6-chloro-2'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 、
rac-(2'S,3S,4'R)-4'-(tert-butyl)-6-chloro-2'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione