Discovery of Chromane-6-Sulfonamide Derivative as a Potent, Selective, and Orally Available Novel Retinoic Acid Receptor-Related Orphan Receptor γt Inverse Agonist
cytokine that plays a dominant role in inflammation, autoimmunity, and host defense. RORγt is a key transcription factor mediating T helper 17 (Th17) cell differentiation and IL-17 production, which is able to activate CD8+ T cells and elicit antitumor efficacy. A series of sulfonamide derivatives as novelRORγtinverseagonists were designed and synthesized. Using GSK2981278 (phase II) as a starting point
Highly Reactive, General, and Long-Lived Catalysts for Coupling Heteroaryl and Aryl Chlorides with Primary Nitrogen Nucleophiles
作者:Qilong Shen、Shashank Shekhar、James P. Stambuli、John F. Hartwig
DOI:10.1002/anie.200462629
日期:2005.2.18
[EN] METHODS FOR PREPARING N-(4-FLUOROBENZYL)-N-(1-METHYLPIPERIDIN-4-YL)-N'-(4-(2-METHYLPROPYLOXY)PHENYLMETHYL)CARBAMIDE AND ITS TARTRATE SALT AND POLYMORPHIC FORM C<br/>[FR] PROCÉDÉS DE PRÉPARATION DE N-(4-FLUOROBENZYL)-N-(1-MÉTHYLPIPÉRIDIN-4-YL)-N'-(4-2-MÉTHYLPROPYLOXY)PHÉNYLMÉTHYL)CARBAMIDE, SON SEL DE TARTRATE ET SA FORME POLYMORPHE C
申请人:ACADIA PHARM INC
公开号:WO2017015272A1
公开(公告)日:2017-01-26
Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(l-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is -ORi or -NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is -OR22 or -NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N- methylpiperidin-4-yl); and R21 is -OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(l-methylpiperidin-4-yl)-N'-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
Highly Reactive, General and Long-Lived Catalysts for Palladium-Catalyzed Amination of Heteroaryl and Aryl Chlorides, Bromides, and Iodides: Scope and Structure–Activity Relationships
作者:Qilong Shen、Tokutaro Ogata、John F. Hartwig
DOI:10.1021/ja077074w
日期:2008.5.1
chelating alkylphosphines for the amination of heteroaryl and aryl chlorides, bromides, and iodides. In the presence of this catalyst, aryl and heteroarylchlorides, bromides, and iodides react with many primary amines in high yields with part-per-million quantities of palladium precursor and ligand. Many reactions of primary amines with both heteroaryl and aryl chlorides, bromides, and iodides occur to
Retinoicacidreceptor related orphanreceptorγt (RORγt), identified as the essential functional regulator of IL-17 producing Th17 cells, is an attractive drug target for treating autoimmune diseases. Starting from the reported GSK2981278 (Phase II), we structurally modified and synthesized a series of 2H-chromone-4-one based sulfonamide derivatives as novelRORγtinverseagonists, which significantly