- PIPERIDINE-DIONE DERIVATIVES
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The invention provides novel compounds having the general formula (I) and tautomers and pharmaceutically acceptable salts thereof, wherein A1, A2, A3, A4, R1, R4, R5, R6, R7 and R8 are as defined herein, compositions including the compounds and methods of using the compounds.
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Page/Page column 133
(2015/11/10)
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- Synthesis of new optically active 2-pyrrolidinones
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A new class of optically active 2-pyrrolidinones was synthesized, starting from S-pyroglutamic acid, a well known natural chiral synthon. The synthetic design followed led to the insertion of various substituents at positions 1 and 5 of the 2-pyrrolidinone ring, including the imidazole moiety. Some of them possess two or three stereogenic centers, the configuration of which was retained under the mild conditions used. The new compounds also carry an imidazole moiety, which, along with the 2-pyrrolidinone template, may prove pivotal to several biological processes.
- Moutevelis-Minakakis, Panagiota,Papavassilopoulou, Eleni,Mavromoustakos, Thomas
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- SUBSTITUTED 1-AMINOPHTHALAZINE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC APPLICATION THEREOF
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The invention concerns 1-amino-phthalazine derivatives of general formula (I): Wherein A, B, L, R, R1, R2, R3, R4, R5 and R7 are as defined herein. The invention also concerns the preparation of said compounds and their therapeutic use.
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Page/Page column 34-35
(2009/05/28)
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- Imidazole derivatives
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The present invention relates to the imidazole derivative of the following formula (I) wherein R1 is hydrogen, optionally substituted alkyl and the like, R2 is hydrogen, optionally substituted alkyl and the like, R3is optionally substituted heteroaryl, R4 is optionally substituted cycloalkyl, optionally substituted phenyl and the like, provided that when R1 is hydrogen, and R2 and R4 are the same or different and each is phenyl or phenyl substituted by halogen atom, lower alkyl or lower alkoxy, R3 is benzothiazolyl or thiazolyl substituted by phenyl, the imidazole derivative of the following formula (XII) wherein R6 is optionally substituted phenyl or optionally substituted heteroaryl and R7 is substituted phenyl, and pharmaceutically acceptable salts thereof. The compounds of the formulas (I) and (XII) and pharmaceutically acceptable salts thereof of the present invention inhibit IL-4 and IL-5 production by Th2 cells and are effective for the prophylaxis and treatment of allergic diseases such as atopic dermatitis, bronchial asthma, allergic rhinitis and the like.
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