In the synthesis of (2R,2′R)-threo-(+)-methylphenidate, a ring-closing metathesis approach was adopted to construct the piperidine ring, while Sharpless asymmetric epoxidation was used for the efficient generation of two contiguous stereocenters.
在合成(2R,2′R)-threo-(+)-methylphenidate 的过程中,采用了闭环偏析法来构建
哌啶环,同时使用 Sharpless 不对称环氧化法来高效生成两个连续的立体中心。