Synthetic Route of 951127-25-6, An article , which mentions 951127-25-6, molecular formula is C16H19F2NO4. The compound – tert-Butyl ((2R,3S)-2-(2,5-difluorophenyl)-5-oxotetrahydro-2H-pyran-3-yl)carbamate played an important role in people’s production and life.
The present invention discloses a new process for the preparation of chiral intermediates austria geleg sandbank synthesis method, the method includes starting material croton acyl chloride and (S)- 4 – benzyl – 2 – oxazolidinone by amidation, alder condensation, condensation of hydrazine hydrate, rearrangement, Boc on, open-loop, Grubbs catalyst ring and hydrolyzed to obtain the chiral intermediate (IX). Preparation method of the invention low cost, easy availability of raw materials, the yield is high, it is suitable for industrial production. (by machine translation)
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics