Substituted heterocyclic compounds as ion channel modulators
申请人:Gilead Sciences, Inc.
公开号:US08664399B2
公开(公告)日:2014-03-04
The present invention relates to sodium channel inhibitors of Formula (I):
in which R1, R2, R3, R4, R5, X, Y, and Z are as defined herein, and to their use in the treatment of various disease states, including cardiovascular diseases and diabetes.
The invention also relates to methods for the preparation of the compounds, and to pharmaceutical compositions containing such compounds.
previous research demonstrated that phosphodiesterase-1 (PDE1) could work as a potential target against idiopathic pulmonary fibrosis. Nimodipine, a calcium antagonist commonly used to improve hypertension, was reported to have inhibition against PDE1. Herein, a series of nimodipine analogues were discovered as novel selective and potent PDE1inhibitors after structural modifications. Compound 2g exhibited
[DE] LIPASE KATALYSIERTE ACYLIERUNG VON ALKOHOLEN MIT DIKETENEN<br/>[EN] LIPASE-CATALYSED ACYLATION OF ALCOHOLS WITH DIKETENES<br/>[FR] ACYLATION D'ALCOOLS AVEC DES DICETENES CATALYSEE PAR DES LIPASES
申请人:BASF AKTIENGESELLSCHAFT
公开号:WO1995006746A1
公开(公告)日:1995-03-09
(DE) Verfahren zur Herstellung von acylierten Alkoholen aus Alkoholen, dadurch gekennzeichnet, daß man den Alkohol mit einem Diketen in Gegenwart von Lipase umsetzt. Das Verfahren eignet sich besonders zur enantioselektiven Acetoacetylierung von racemischen Alkoholen.(EN) A process for preparing acylated alcohols from alcohols is characterised in that the alcohol is reacted with a diketene in the presence of lipase. The process is particularly suitable for the enantioselective acetoacetylation of racemic alcohols.(FR) Un procédé de préparation d'alcools acylés à partir d'alcools se caractérise en ce que l'on fait réagir l'alcool avec une dicétène en présence d'une lipase. Ce procédé est particulièrement utile pour l'acétoacétylation énantiosélective d'alcools racémiques.
A Highly Chemo- and Stereoselective Synthesis of β-Keto Esters via a Polymer-Supported Lipase Catalyzed Transesterfication
作者:Armando Córdova、Kim D. Janda
DOI:10.1021/jo001478o
日期:2001.3.1
Yeast-mediated resolution of .beta.-keto esters of prochiral alcohols
作者:Tomas Hudlicky、Toshiya Tsunoda、Kumar G. Gadamasetti、Jerry A. Murry、Gary E. Keck
DOI:10.1021/jo00011a031
日期:1991.5
Several racemic alcohols were converted to their beta-keto esters with diketene, and the resulting compounds were subjected to kinetic resolution by means of bakers' yeast. The unreacted keto esters were separated from the reduced hydroxy esters by chromatography, and the products were analyzed for levels of enantiomeric excess. Chiral shift reagents, Mosher esters, and optical rotation of the enantiomers of the alcohols were the criteria used to determine the optical integrity of the resolved alcohols after hydrolysis of the esters. Absolute stereochemistry was determined for the resolution products of all the substrates. Some rationale is advanced to account for the observed levels of enantiomeric excess and for the apparent diastereospecificity of the enzymatic resolution. The utility of this process as means of resolution of prochiral alcohols as well as an application of such resolution to the preparation of both enantiomers of a pyrrolizidine alkaloid synthon are indicated.