(2R,5S)-1-aza-7-(cyanomethyl)-7-(ethoxycarbonyl)-3-oxo-8-oxa-2-phenylbicyclo[3.3.0]octane 在
cobalt(II) chloride hexahydrate 、 sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 16.08h,
生成 (3R,6S,7aS)-3-phenylspiro[1,3,7,7a-tetrahydropyrrolo[1,2-c][1,3]oxazole-6,3'-pyrrolidine]-2',5-dione 、
(2R,5S,7S)-spiro[1-aza-8-oxo-2-phenyl-3-oxabicyclo[3.3.0]octane]-7,3'-[pyrrolidin-2'-one]