Highly Efficient Monophosphine-Based Catalyst for the Palladium-Catalyzed Suzuki−Miyaura Reaction of Heteroaryl Halides and Heteroaryl Boronic Acids and Esters
作者:Kelvin Billingsley、Stephen L. Buchwald
DOI:10.1021/ja068577p
日期:2007.3.1
active and efficient catalyst system derived from a palladium precatalyst and monophosphine ligands 1 or 2 for the Suzuki-Miyaura cross-coupling reaction of heteroaryl boronic acids and esters has been developed. This method allows for the preparation of a wide variety of heterobiaryls in good to excellent yields and displays a high level of activity for the coupling of heteroaryl chlorides as well as
[EN] LARGE CONDUCTANCE CALCIUM-ACTIVATED K CHANNEL OPENER<br/>[FR] ELEMENT D'OUVERTURE DE CANAL K, ACTIVE PAR DU CALCIUM, A CONDUCTANCE ELEVEE
申请人:TANABE SEIYAKU CO
公开号:WO2004035570A1
公开(公告)日:2004-04-29
There are disclosed a large conductance calcium-activated K channel opener comprising a compound of the formula (I): wherein ring A is a 5-membered heterocyclic ring containing any one of O, N or S, which ring may be substituted by R4, R1 is aryl, heterocyclic or heterocycle-substituted carbonyl; R2 is hydrogen, halogen, carboxy, amino, alkyl, alkoxycarbonyl, alkenyl or cycloalkyl; R3 is aryl, heterocyclic or alkyl; and R4 is hydrogen or alkyl, each of substituents may be substituted, or a pharmaceutically acceptable salt thereof as an active ingredient.
The present invention pertains, at least in part, to novel substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms.
[EN] HETEROCYCLIC COMPOUNDS AS JANUS KINASE INHIBITORS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES UTILISABLES EN TANT QU'INHIBITEURS DES JANUS KINASES
申请人:BIOCRYST PHARM INC
公开号:WO2013033093A1
公开(公告)日:2013-03-07
The invention provides compounds of formula I: (I) or a salt thereof as described herein. The invention also provides pharmaceutical compositions comprising a compound of formula I, processes for preparing compounds of formula I, intermediates useful for preparing compounds of formula I and therapeutic methods for suppressing an immune response or treating cancer, including a hematologic malignancy, using compounds of formula I.
Compounds having the formula
are useful for inhibiting protein tyrosine kinases. The present invention also discloses methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.