Process and intermediates for the preparation of 4-aryl piperidines
申请人:——
公开号:US20040181070A1
公开(公告)日:2004-09-16
A novel process is provided for the preparation of 4-aryl piperidines, and the useful intermediates obtained therein. These compounds are intermediates for the synthesis of melanocortin-4 receptor (MC-4R), which are useful for the treatment of disorders such as obesity, diabetes, male sexual dysfunction, and female sexual dysfunction.
Rapid Identification of a Scalable Catalyst for the Asymmetric Hydrogenation of a Sterically Demanding Aryl Enamide
作者:Laurent Lefort、Jeroen A. F. Boogers、Thijs Kuilman、Robert Jan Vijn、John Janssen、Harrie Straatman、Johannes G. de Vries、André H. M. de Vries
DOI:10.1021/op100011y
日期:2010.5.21
High throughput screening was used to find a cost-effective and scalable catalyst for the asymmetrichydrogenation of a sterically demanding enamide as an intermediate towards a new potent melanocortin receptor agonist useful in the treatment of obesity. Lessons drawn from the testing of a first library of 96 chiral monodentate phosphoramidites led to the design of a second focused library of 16 chiral