(4R,5R)-4-benzyloxy-5-methyl-6-phenyl-1-hexyne 、
3-ethyl 1,2-dimethyl (1S,2S,3R,4R,5R)-4,5-(diethylmethylenedioxy)-1,2-(dimethylmethylenedioxy)-5-formyl-3-(trimethylsilyloxy)pentane-1,2,3-tricarboxylate 在
正丁基锂 、
戴斯-马丁氧化剂 作用下,
生成 3-ethyl 1,2-dimethyl (1S,2S,3R,4R,5R,10R,11R)-10-benzyloxy-4,5-(diethylmethylenedioxy)-1,2-(dimethylmethylenedioxy)-11-methyl-6-oxo-12-phenyl-3-(trimethylsilyloxy)-7-dodecyne-1,2,3-tricarboxylate