Synthesis of homochiral piperidine derivatives from S-glutamic acid. Stereoselective 1,4-addition of organocuprates to a Δ3-piperidine-2-one. A paroxetine analogue-Science-Chemical Encyclopedia-lookchem

Synthesis of homochiral piperidine derivatives from S-glutamic acid. Stereoselective 1,4-addition of organocuprates to a Δ3-piperidine-2-one. A paroxetine analogue
Add time:07/29/2019 Source:sciencedirect.com

Enantiomerically pure S-5-hydroxy-2-piperidinone 4, readily available from S-glutamic acid, serves as a key intermediate for the synthesis of 3,4-trans substituted piperidine derivatives. The substituents in the 4-position are introduced via 1,4 conjugate organocuprate addition to 7 with excellent trans selectivity. This reaction is employed for the synthesis of a paroxetine analogue 21g. All attempts to transform 16 to (+)-meroquinene 17 failed.

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