The preparation of vicinal difluoroolefinic carbonyl compounds and their application to the synthesis of difluororetinal analogs
作者:A.E Asato、R.S.H Liu
DOI:10.1016/s0040-4039(00)84789-9
日期:1986.1
The preparation of a novel vicinal difluorinated retinal analog is described. The key difluoroolefinic intermediate in the synthesis was prepared by the reaction of DAST with ethyl acetoacetate.
A series of octahydropyrrolo[3,4-c]pyrroles were synthesized and evaluated by orexin 1 and 2 receptor (OX1 & 2 R) antagonists assays. Compound 14l with potent OXR antagonist activity and suitable pharmacokinetic behavior was chosen to be investigated in an EEG study, which demonstrated effects of sleep promotion comparable to Suvorexant. Furthermore, the di-fluro substituted analogs exhibited reduced