重氮甲烷 、
tert-butyl-[2-[[(Z)-[(2S,4S)-2-methoxy-4-methylcyclohexylidene]-trimethylsilyloxymethoxy]methyl]-3-methylcyclopent-2-en-1-yl]oxy-dimethylsilane 在
盐酸 作用下,
生成 (S)-4-Methyl-cyclohex-1-enecarboxylic acid 5-(tert-butyl-dimethyl-silanyloxy)-2-methyl-cyclopent-1-enylmethyl ester 、 methyl (1R,2S,4S)-1-<(1S,3R)-3-(tert-butyldimethylsilyl)oxy-1-methyl-2-methylenecyclopentyl>-2-methoxy-4-methylcyclohexanecarboxylate 、 methyl (1R,2S,4S)-1-<(1R,3S)-3-(tert-butyldimethylsilyl)oxy-1-methyl-2-methylenecyclopentyl>-2-methoxy-4-methylcyclohexanecarboxylate