5‐Amino‐2H‐pyran‐3(6H)‐one, 1, a Convenient Intermediate in the Synthesis of Pyran Containing 1,4‐Dihydropyridines
摘要:
5-Amino-2H-pyran-3(6H)-one, 1, is a novel intermediate that is useful in the synthesis of pyran containing dihydropyridines. The synthesis and use of I will be discussed.
An Improved Synthesis of Pyran-3,5-dione: Application to the Synthesis of ABT-598, a Potassium Channel Opener, via Hantzsch Reaction
摘要:
Ketoester 1 is cyclized to give pyran-3,5-dione 2 in 78% yield using a parallel addition of ketoester 1 and base NaOBu in refluxing THE Compared to the previously reported procedures, these optimized conditions have significantly increased the yield of this transformation and the quality of pyran 2 and prove to be suitable for large-scale preparation. An application of 2 to the synthesis of ABT-598, a potassium channel opener, is demonstrated.
[EN] THIOPHENE DERIVATIVES FOR THE TREATMENT OF DISORDERS CAUSED BY IGE<br/>[FR] DÉRIVÉS DE THIOPHÈNE POUR LE TRAITEMENT DE TROUBLES PROVOQUÉS PAR IGE
申请人:UCB BIOPHARMA SRL
公开号:WO2019243550A1
公开(公告)日:2019-12-26
Thiophene derivatives of formula (I) and a pharmaceutically acceptable salt thereof are provided. These compounds have utility for the treatment or prevention of disorders caused by IgE, such as allergy, type 1 hypersensitivity or familiar sinus inflammation.
[EN] TRICYCLIC MODULATORS OF TNF SIGNALING<br/>[FR] MODULATEURS TRICYCLIQUES DE LA SIGNALISATION DU TNF
申请人:ABBVIE INC
公开号:WO2016168641A1
公开(公告)日:2016-10-20
The invention provides tricyclic heterocyclic compounds, pharmaceutically acceptable salts, prodrugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variables are defined herein. The compounds of the invention may be useful for treating immunological and oncological conditions.
The copper-catalyzed [4 + 2] annulation of α,β-unsaturated ketoximeacetates with 1,3-dicarbonyl compounds for the synthesis of three classes of structurally diverse pyridines has been developed. This method employs 1,3-dicarbonyl compounds as C2 synthons and enables the synthesis of multifunctionalized pyridines with diverse electron-withdrawing groups in moderate to good yields. The mechanistic investigation
[EN] SUBSTITUTED TRICYCLIC AMIDES, ANALOGUES THEREOF, AND METHODS USING SAME<br/>[FR] AMIDES TRICYCLIQUES SUBSTITUÉS, ANALOGUES DE CEUX-CI ET PROCÉDÉS LES METTANT EN OEUVRE
申请人:ARBUTUS BIOPHARMA CORP
公开号:WO2021229302A1
公开(公告)日:2021-11-18
The present disclosure includes substituted tricyclic amides, or analogues thereof of formula (I) (I), wherein X, Y, ring A, R1, R5, R6 and R7 are as defined herein, and compositions comprising compounds of formula (I) that can be used to treat or prevent hepatitis B virus (HBV) and/or hepatitis D virus (HDV) infections in a patient.
Tricyclic dihydropyrazolone and tricyclic dihydroisoxazolone potassium channel openers
申请人:——
公开号:US20020007059A1
公开(公告)日:2002-01-17
Compounds of formula I
1
are useful in treating diseases prevented by or ameliorated with potassium channel openers. Also disclosed are potassium channel opening compositions and a method of opening potassium channels in a mammal.