A novel and convenient one-pot sequential cascade method for the preparation of 2-trifluoromethylquinazolin-4(3H)-ones is described. Trifluoroacetic acid (TFA) was employed as inexpensive and readily available CF3 source, which in the presence of T3P was condensed with a variety of anthranilic acids and amines to provide the products in up to 75% yield. The protocol was proved to be robust on 80 g
[EN] QUINAZOLINE ANALOGS AND RELATED COMPOUNDS AND METHODS FOR TREATING INFLAMMATORY CONDITIONS<br/>[FR] ANALOGUES DE QUINAZOLINE ET COMPOSES ASSOCIES ET METHODES POUR TRAITER LES TROUBLES INFLAMMATOIRES
申请人:SIGNAL PHARMACEUTICALS, INC.
公开号:WO1999001441A1
公开(公告)日:1999-01-14
(EN) Compounds having utility as anti-inflammatory agents in general and, more specifically, for the prevention and/or treatment of immunoinflammatory and autoimmune diseases are disclosed. The compounds are quinazoline-containing compounds. Methods are also disclosed for preventing and/or treating inflammatory conditions by administering to an animal in need thereof an effective amount of a compound of this invention, preferably in the form of a pharmaceutical composition.(FR) L'invention concerne des composés utiles de manière générale comme agents anti-inflammatoires et plus spécifiquement comme agents préventifs et/ou thérapeutiques pour les maladies immuno-inflammatoires et auto-immunes. Ces composés contiennent de la quinazoline. L'invention concerne également de méthodes pour prévenir et/ou traiter les états inflammatoires en administrant à un animal nécessitant un tel traitement une quantité efficace d'un des composés décrits, de préférence sous forme d'une composition pharmaceutique.
Cathepsin K is a major drug target for osteoporosis and related-bone disorders. Using a combination of virtual combinatorial chemistry, QSAR modeling, and molecular docking studies, a series of cathepsin K inhibitors based on N-(functionalized benzoyl)-homocycloleucyl-glycinonitrile scaffold was developed. In order to avoid previous problems of cathepsin K inhibitors associated with lysosomotropism of compounds with basic character that resulted in off-target effects, a weakly- to nonbasic moiety was incorporated into the P3 position. Compounds 5, 6, and 9 were highly selective for cathepsin K when compared with cathepsins L and S, with the K-i values in the 10-30 nM range. The kinetic studies revealed that the new compounds exhibited reversible tight binding to cathepsin K, while the X-ray structural studies showed covalent and noncovalent binding between the nitrile group and the catalytic cysteine (Cys25) site.
Rigid analogs of indomethacin
作者:Douglas R. Olson、William J. Wheeler、Jack N. Wells