INDOLIZINONE BASED DERIVATIVES AS POTENTIAL PHOSPHODIESTERASE 3 (PDE3) INHIBITORS AND A PROCESS FOR THE PREPARATION THEREOF
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20140296530A1
公开(公告)日:2014-10-02
The present invention provides compounds of general formula A useful as potential phosphodiesterase3 (PDE3) inhibitory agents and a process for the preparation thereof. The derivatives of formula A can be employed as therapeutics in human and veterinary medicine, where they can be used, for example, for the treatment and prophylaxis of the following diseases: heart failure, dilated cardiomyopathy, platelet inhibitors, cancer and obstructive pulmonary diseases.
An enantioselective radical alkylation of 4-alkyl-1,4-dihydropyridines with Morita–Baylis–Hillman (MBH) adducts has been reported. The SN2-type products are predominant. This reaction is enabled by dual photoredox/palladiumcatalysis. The alkylation products are provided in good yields with good regio- and enantioselectivity. The use of Ding’s spiroketal-based bis(phosphine) (SKP) ligand is crucial
已经报道了 4-烷基-1,4-二氢吡啶与 Morita-Baylis-Hillman (MBH) 加合物的对映选择性自由基烷基化。S N 2 型产品占主导地位。该反应是通过双光氧化还原/钯催化实现的。烷基化产物以良好的产率和良好的区域选择性和对映选择性提供。Ding 的基于螺缩酮的双(膦)(SKP)配体的使用对于实现令人满意的区域选择性和对映选择性至关重要。生成的 α,β-不饱和酯可以很容易地还原为合成有用的手性烯丙醇。
PROCESS FOR PREPARATION OF INDOLIZINE BASED DERIVATIVES AS POTENTIAL PHOSPHODIESTRASE 3 (PDE3) INHIBITORS
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20160159792A1
公开(公告)日:2016-06-09
The present invention provides compounds of general formula 1 useful as potential phosphodiesterase3 (PDE3) inhibitory agents and a process for the preparation thereof. The derivatives of formula 1 can be employed as therapeutics in human and veterinary medicine, where they can be used, for example, for the treatment and prophylaxis of the following diseases: heart failure, dilated cardiomyopathy, platelet inhibitors, cancer and obstructive pulmonary diseases.