Aminoguanidine hydrazone derivatives, process for producing the same and drugs thereof
申请人:Takeda Chemical Industries, Ltd.
公开号:US06350749B1
公开(公告)日:2002-02-26
The present invention is to provide a compound of the formula:
wherein the ring A is an optionally substituted 5- to 6-membered aromatic heterocyclic ring, the ring B an optionally substituted 5- to 6-membered aromatic homocyclic ring or an optionally substituted 5- to 6-membered aromatic heterocyclic ring, R1 is a hydrogen atom, a hydroxy group or a lower alkyl group, and n is 0 or 1, or a salt thereof, which is effective for the prevention or treatment of ischemic cardiac disease, etc., and which is useful as an agent for preventing or treating ischemic cardiac disease, etc. such as myocardial infarction, arrhythmia, etc.
Cyclohexane-1,3-Diones for Use in the Treatment of Amyotrophic Lateral Sclerosis
申请人:Kirsch Donald R.
公开号:US20120264765A1
公开(公告)日:2012-10-18
The present invention relates to the identification of provided cyclohexane-1,3-diones (CHD compounds) and pharmaceutical compositions thereof for treating subjects with amyotrophic lateral sclerosis (ALS) and other neurodegenerative diseases. The invention also provides methods of preparing the provided CHD compounds.
Pd/C-Catalyzed Carbonylative Amidation for the Synthesis of 2-Carboxamidocyclohexane-1,3-diones
作者:Sheetal、Arvind Singh Chauhan、Ajay Kumar Sharma、Navneet Sharma、Kousik Giri、Pralay Das
DOI:10.1021/acs.orglett.3c02808
日期:2023.11.24
first-ever heterogeneous Pd/C-catalyzed single-step tandem approach for the synthesis of 2-carboxamidocyclohexane-1,3-diones via direct carbonylative C–H amidation of cyclohexane-1,3-diones is reported. The reaction progressed under base-, oxidant-, and ligand-free conditions employing oxalic acid as a CO surrogate and sodium azide as a nitrogen precursor in a double-layer vial system.
AMINOGUANIDINE HYDRAZONE DERIVATIVES, PROCESS FOR PRODUCING THE SAME AND DRUGS THEREOF
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1057812A1
公开(公告)日:2000-12-06
The present invention is to provide a compound of the formula:
wherein the ring A is an optionally substituted 5- to 6-membered aromatic heterocyclic ring, the ring B an optionally substituted 5- to 6-membered aromatic homocyclic ring or an optionally substituted 5- to 6-membered aromatic heterocyclic ring, R1 is a hydrogen atom, a hydroxy group or a lower alkyl group, and n is 0 or 1, or a salt thereof, which is effective for the prevention or treatment of ischemic cardiac disease, etc., and which is useful as preventing or treating agent for ischemic cardiac disease, etc. such as myocardial infarction, arrhythmia, etc.
PROCESS FOR THE PRODUCTION OF OPTICALLY ACTIVE CYCLIC ENAMINONE DERIVATIVES
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1229019A1
公开(公告)日:2002-08-07
A process for the production of optically active cyclic enaminone derivatives characterized by aminating one of the carbonyl groups of a cyclic 1,3-diketone derivative having a symmetry plane to obtain an optically isomeric mixture of chiral cyclic enaminone derivatives and subjecting this mixture to optical resolution.