4,4-dimethyl-2-[[(1S,4R,5S)-5-(phenylmethoxymethyl)-4-(2-trityloxyethyl)cyclohex-2-en-1-yl]oxymethyl]-5H-1,3-oxazole 在
正丁基锂 作用下,
以
四氢呋喃 、
正己烷 为溶剂,
生成 (S)-[(1S,5S,6S)-5-Benzyloxymethyl-6-(2-trityloxy-ethyl)-cyclohex-2-enyl]-(4,4-dimethyl-4,5-dihydro-oxazol-2-yl)-methanol 、 (R)-[(1S,5S,6S)-5-Benzyloxymethyl-6-(2-trityloxy-ethyl)-cyclohex-2-enyl]-(4,4-dimethyl-4,5-dihydro-oxazol-2-yl)-methanol