Novel Antiarthritic Agents with 1,2-Isothiazolidine-1,1-dioxide (γ-Sultam) Skeleton: Cytokine Suppressive Dual Inhibitors of Cyclooxygenase-2 and 5-Lipoxygenase
摘要:
Various 1,2-isotkiazolidine-1,1-dioxide (gamma-sultam) derivatives containing an antioxidant moiety, 2i6-di-tert-butylphenol substituent, were prepared. Some compounds, which have a lower alkyl group at the 2-position of the gamma-sultam skeleton, showed potent inhibitory effects on both cyclooxygenase (COX)-2 and 5-lipoxygenase (5-LO), as well as production of interleukin (IL)-1 in in vitro assays. They also proved to be effective in several animal arthritic models without any ulcerogenic activities. Among these compounds, (E)-(5)-(3,5-di-tert-butyl-4-hydroxybenzyliclene)-2-ethyl-1,2-isothiazolidine-1, (S-2474) was selected as an antiarthritic drug candidate and is now under clinical trials. The structure-activity relationships (SAR) examined and some pharmacological evaluations are described.
Novel Antiarthritic Agents with 1,2-Isothiazolidine-1,1-dioxide (γ-Sultam) Skeleton: Cytokine Suppressive Dual Inhibitors of Cyclooxygenase-2 and 5-Lipoxygenase
摘要:
Various 1,2-isotkiazolidine-1,1-dioxide (gamma-sultam) derivatives containing an antioxidant moiety, 2i6-di-tert-butylphenol substituent, were prepared. Some compounds, which have a lower alkyl group at the 2-position of the gamma-sultam skeleton, showed potent inhibitory effects on both cyclooxygenase (COX)-2 and 5-lipoxygenase (5-LO), as well as production of interleukin (IL)-1 in in vitro assays. They also proved to be effective in several animal arthritic models without any ulcerogenic activities. Among these compounds, (E)-(5)-(3,5-di-tert-butyl-4-hydroxybenzyliclene)-2-ethyl-1,2-isothiazolidine-1, (S-2474) was selected as an antiarthritic drug candidate and is now under clinical trials. The structure-activity relationships (SAR) examined and some pharmacological evaluations are described.
Compounds represented by the general formula (I); and drugs and medicinal compositions, containing the compounds: (I) wherein n is an integer of 1 to 20; Q is (II) or (III) A is cyano or the like; B is hydrogen, halogeno, or the like; X1 and X2 are each independently selected from between O and S; E is C1-4 alkyl; and R1, R2, R3 and R4 are each independently selected from between hydrogen and C1-6 alkyl.
[EN] MACROCYCLIC INTEGRASE INHIBITORS<br/>[FR] INHIBITEURS DE L'INTÉGRASE MACROCYCLIQUE
申请人:TIBOTEC PHARM LTD
公开号:WO2011121105A1
公开(公告)日:2011-10-06
Compound having Formula (I) and pharmaceutically acceptable salts or solvates thereof, their pharmaceutical formulations and use as HIV inhibitors.
具有化学式(I)的化合物及其药用盐或溶剂化合物,它们的药物配方以及作为HIV抑制剂的用途。
Synthetic Studies on Condensed-Azole Derivatives. I. Synthesis and Anti-asthmatic Activities of .OMEGA.-Substituted Alkylthioimidazo(1,2-b)pyridazines.
A series of novel ω-substituted alkylthioimidazo[1, 2-b]pyridazines was designed and synthesized in an effort to find a novel anti-asthmatic agent. The anti-asthmatic activity of these compounds was evaluated ont he basis of their ability to inhibit thromboxane A2 synthetase and platelet activating factor (PAF)-induced bronchoconstriction in guinea pigs. None of these compounds significantly inhibited thromboxane A2 synthetase, though, sulfonamide derivatives potently inhibited PAF-induced bronchoconstriction. Among them, 3-(imidazo[1, 2-b]pyridazin-6-yl)thiopropanesulfonamide (5) showed the most potent inhibitory effect. The anti-asthmatic effects of compound 5 in experimental models were superior to those of theophylline.