Development of a Scaleable Synthesis of a Geminal Dimethyl Tertiary Amine as an Inhaled Muscarinic Antagonist for the Treatment of COPD
摘要:
An efficient and scalable process for the synthesis of muscarinic antagonist, PF-3635659 1, is described, illustrating redesign of an analogue-targeted synthesis which contained a scale-limiting rhodium-activated C H amination step. The final route includes a reproducible modified Bouveault reaction which has not previously been reported on a substrate of this complexity, or on such a scale with over 5 kg of the requisite gem-dimethylamine prepared via this methodology.
Hydrochloride salt of 5-[3-(3-hydroxyphenoxy) azetidin-1-yl]-5-methyl-2,2-diphenylhexanamide
申请人:Glossop Paul Alan
公开号:US20100113409A1
公开(公告)日:2010-05-06
This invention relates to the hydrochloride salt of 5-[3-3-hydroxyphenoxy)azetidin-1-yl]-5-methyl-2,2-diphenyl-hexanamide or derived form thereof and its use as a medicament.