Discovery of 1,1-dioxo-1,2,6-thiadiazine-5-carboxamide derivatives as cannabinoid-like molecules with agonist and antagonist activity
摘要:
A series of new 2-substituted 1,1-dioxo-1,2,6-thiadiazine-5-carboxylate derivatives have been prepared from monosubstituted sulfamides in order to obtain N-substituted1,1-dioxo-1,2,6-thiadiazine-5-carboxamides as novel cannabinoid derivatives, analogues of Rimonabant (SR141716A). Their potential functional activity on cannabinoid receptors has been evaluated in vitro and in vivo in mice, showing that two compounds (37 and 39) behave as cannabinoid agonists in vitro. Their potency is lower than that of the reference compound, WIN 55,212-2, but their efficacy is similar to that of this cannabinoid agonist, although no in vivo activity is observed. Another derivative (38) behaves as a cannabinoid antagonist both in vitro and in vivo, being its efficacy and potency similar to that of the well-known antagonist SR141716A. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of arabinose glycosyl sulfamides as potential inhibitors of mycobacterial cell wall biosynthesis
摘要:
A series of arabinose glycosyl sulfamides with varying alkyl chain types and lengths were synthesised as mimics of decaprenolphosphoarabinose (DPA), and as potential inhibitors of mycobacterial cell wall biosynthesis. Unprecedented conversion of the desired furanose to the thermodynamically more stable pyranose form occurred during final de-protection. Biological testing against Mycobacterium smegmatis revealed low to moderate anti-mycobacterial activity with marked dependence on alkyl chain length, which in the case of mono-substituted sulfamides was maximal for a C-10 chain. (C) 2015 Elsevier Masson SAS. All rights reserved.
A novel series of benzoylsulfonamide derivatives were synthesized and biologically evaluated. Among them, 4-(biphenyl-4-ylmethylsulfanylmethyl)-N-(hexane-1-sulfonyl)benzamide (compound 18K) was identified as a proteintyrosinephosphatase 1B (PTP1B) inhibitor with potent and selective inhibitory activity against PTP1B (IC50=0.25 µM). Compound 18K functioned as a non-competitive inhibitor and bound
Basicity of nitrogen–sulphur(<scp>VI</scp>) compounds. Part 6. Ionization of NN′-di-and N-mono-substituted sulphamides and dihydro-2,1,3-benzothiadiazoline and benzothiadiazine 2,2-dioxides (cyclic sulphamides)
作者:Padraig O. Burke、Séan D. McDermott、Thomas J. Hannigan、William J. Spillane
DOI:10.1039/p29840001851
日期:——
tri-substituted sulphamides have been synthesised and their ionization equilibria in base (Schemes 1–3) have been studied. Many of the sulphamides are new materials. The pKa values obtained for each series have been correlated in Hammett and Taft plots. The Hammett ρ values obtained for the ionization of the proximate hydrogen are ca. 2.3. The Taft ρ* value obtained for ionization of the ‘remoter’
已合成了36个二取代的,单取代的和两个三取代的磺酰胺,并研究了它们在碱中的电离平衡(方案1-3)。许多磺酰胺是新材料。在Hammett和Taft图中,已将每个系列获得的p K a值关联起来。对于邻近氢的电离获得的哈米特ρ值约为。2.3。用于“远程”氢离子化获得的Taftρ*值为1.68。六元环状磺酰胺比其无环类似物的酸性大约高出约2。2.5 p ķ一个单元和五元环sulphamides是CA。4 p K a单元比模型开放链对应单元酸性更高。硫d-轨道参与和环应变被认为是这种“增强酸”作用的可能来源。
BENZIMIDAZOLE DERIVATIVES
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP1142880A1
公开(公告)日:2001-10-10
The present invention provides novel benzimidazole derivatives of the following formula (I) and salts thereof:
wherein R1 represents a lower alkyl group or a lower alkyloxy-lower alkyl group: R2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group, and such; R3 represents a lower alkyl group, a lower alkenyl group, an aryl group, a lower alkylaryl group, an aryl-lower alkenyl group, a halothienyl group, a lower alkylamino group, or an aryl-lower alkylamino group; A represents a benzene ring, a naphthalene ring, or a pyridine ring; and X represents a halogen atom. The derivatives and their salts have blood sugar level-depressing activity or PDE5-inhibiting activity, and are useful as pharmaceutical preparations.