5-芳基-1,2-二氢-1-吡咯里嗪酮类化合物的合成及抗炎镇痛作用

目的 研究5-芳基-1，2-二氢-1-吡咯里嗪酮类化合物的抗炎镇痛作用构效关系，寻找高效低毒、具有抗炎镇痛活性的新型吡咯里嗪酮衍生物。方法 以吡咯里嗪酮为母体，设计并合成了5-芳基-1，2-二氢-1-吡咯里嗪酮类化合物。用二甲苯致小鼠耳肿胀法和小鼠醋酸扭体法测定了该类化合物的抗炎及镇痛活性。结果 用两条路线合成了10个目标化合物，经1H-NMR和MS确证其结构。小鼠试验表明，一些所合成的化合物具有明显的抗炎和／或镇痛作用。结论 化合物Ⅲ1及Ⅲ5的抗炎活性优于对照药布洛芬；化合物Ⅲ5的镇痛活性优于对照药布洛芬；其中化合物Ⅲ5的抗炎及镇痛活性均强于对照药布洛芬，值得进一步研究。     

3-芳基-2-甲基-1-吡咯并[1,2-a]吡嗪酮类衍生物的合成和抗炎镇痛作用

目的研究3-芳基-2-甲基-1-吡咯并[1,2-a]吡嗪酮(2)类化合物抗炎镇痛作用的构效关系.方法通过吡咯-2-甲酸甲酯与α-溴代芳基乙酮的烃基化反应,制得1-(2-氧代-2-芳基)乙基吡咯-2-甲酸甲酯(4),4与甲胺反应经过环合直接生成目的化合物2;用小鼠测试了所合成化合物的抗炎镇痛活性.结果与结论合成了15个目标化合物;小鼠试验表明,一些所合成的化合物具有明显的抗炎和/或镇痛作用,其中化合物2o的作用活性与阳性对照药布洛芬相似.     

3,4-二氢吡咯[1,2-a]吡嗪-1-酮衍生物的合成及抗炎镇痛作用

目的研究(2H)-2-环己基-3,4-二氢吡咯[1,2-a]吡嗪-1-酮衍生物抗炎镇痛作用的构效关系。方法以2-吡咯甲酸甲酯为原料,经取代、环合,制备(2H)-2-环己基-3,4-二氢吡咯[1,2-a]吡嗪-1-酮(3);通过Friedel-Crafts酰基化反应,制得其6-酰基衍生物4a~4j。用小鼠测试了所合成化合物的抗炎和镇痛活性。结果与结论合成了10个未见文献报道的新化合物4a~4j,其结构经MS1、H-NMR分析确证。抗炎镇痛试验表明,有些化合物具有明显的抗炎和/或镇痛作用,其中化合物4d的活性与对照药布洛芬相当。     

二氢吡咯并吡嗪酮衍生物的合成和抗炎镇痛作用

目的 研究3，4，－二氢吡咯并[1,2-a]吡嗪－1－酮（Ⅱ）类化合物的抗炎镇痛作用构效关系。方法 通过2－吡咯甲酸甲酯与N－氯乙腈的烃基化反应，制得N－氢甲基吡咯－2－甲酸甲酯（Ⅳ），Ⅳ经还原，环合，Friedel-Crafts酰基化反应，生成6－芳酰基－2－甲基－3，4－二氢吡咯并[1,2-a]吡嗪－1－酮类化合物；用小鼠测试了所合成化合物的抗炎镇痛活性。结果与结论 合成了13个目标化合物；小鼠试验表明，一些所合成的化合物具有明显的抗炎和／或镇痛作用，其中，ZP163的作用活性与对照药布洛芬相似。     

二氢吡咯并(口恶)嗪酮衍生物的合成和抗炎镇痛作用

目的研究(1H)-3,4-二氢吡咯[2,1-c][1,4](口恶)嗪-1-酮(Ⅲ)类化合物抗炎镇痛作用的构效关系.方法 通过2-吡咯甲酸甲酯与1,2-二溴乙烷N-烃基化反应,制得1-(2-溴乙基)吡咯-2-甲酸甲酯(Ⅳ),经过氧化银处理,得到Ⅲ;通过Friedel-Crafts酰基化反应,合成Ⅲ的6-酰基衍生物Ⅴ1～Ⅴ8;用小鼠测试了所合成的化合物的抗炎镇痛活性.结果与结论 合成了8个目标化合物;药理实验表明,所合成的一些化合物具有明显的抗炎和/或镇痛活性,其中Ⅴ5活性最强.     

5,6-二芳基-2,3-二氢-1-吡咯里嗪酮类化合物抗炎作用的三维构效关系研究

目的研究5,6-二芳基-2,3-二氢-1-吡咯里嗪酮类化合物抗炎作用的三维构效关系,为进一步设计新结构类型化合物提供理论依据。方法和结果用计算机辅助药物设计专家系统(Apex-3D)软件模拟并构建药效基团模型和三维构效关系(3D-QSAR)方程。结论化合物的抗炎活性与分子总疏水性、空间体积和吡里酮环1位基团和两个次级作用部位的性质有关;增加吡里酮环1位基团π电子密度,降低分子总疏水性,及减弱6位苯环对位取代,都将有利于化合物的抗炎作用。     

n-(4-芳酰胺基苯基)甲磺酰胺类化合物的合成及抗炎活性

目的研究n-(4-芳酰胺基苯基)甲磺酰胺类化合物的抗炎作用。方法以对硝基苯胺为起始原料经三步反应合成目标化合物，并以二甲苯致小鼠耳肿胀模型测试目标化合物的抗炎活性。结果共合成11个化合物，经IR，¹HNMR和MS光谱确证结构；初步药理试验结果显示大部分化合物对二甲苯致小鼠耳肿胀具有较强的抑制作用。结论n-(4-芳酰胺基苯基)甲磺酰胺类化合物具有较强的抗炎活性。     

2-(E)-取代苯亚甲基-6-取代胺甲基-1-取代苯基环己醇类化合物的合成及抗炎镇痛、抗癌活性研究

目的设计合成2-(E)-取代苯亚甲基-6-取代胺甲基-1-取代苯基环己醇类化合物(未见文献报道),并对其抗炎镇痛、抗癌活性进行初步的评价.方法以环己酮为起始原料,通过Claisen-Schmidt缩合反应、Mannich反应、Grignard反应制得目标产物;采用二甲苯致小鼠耳肿胀法和小鼠醋酸扭体法测定该类化合物的抗炎及镇痛活性;采用MTT检测法,测定目标化合物对HCT-15细胞的生长抑制作用.结果目标化合物结构经红外光谱、核磁共振氢谱及质谱确证.初步药理筛选结果表明:部分化合物具有显著的抗炎及镇痛活性;大部分化合物对HCT-15瘤株具有很强的生长抑制作用.结论合成了14个未见文献报道的新化合物;化合物Ⅲ9、Ⅲ12及Ⅲ13的抗炎活性优于对照药布洛芬,Ⅲ4的抗炎及镇痛活性均强于对照药布洛芬;大部分化合物在10 μg/mL时,对HCT-15瘤株的生长抑制率高于60%,其中Ⅲ9的抑制率达到86.3%,值得进一步研究.     

二氢吡咯并噁嗪酮衍生物的合成和抗炎镇痛作用

目的研究 (1H) 3,4 二氢吡咯 [2 ,1 c][1,4 ]嗪 1 酮 (Ⅲ )类化合物抗炎镇痛作用的构效关系。方法通过 2 吡咯甲酸甲酯与 1,2 二溴乙烷N 烃基化反应 ,制得 1 (2 溴乙基 )吡咯 2 甲酸甲酯 (Ⅳ ) ,经过氧化银处理 ,得到Ⅲ ;通过Friedel Crafts酰基化反应 ,合成Ⅲ的 6 酰基衍生物Ⅴ1～Ⅴ8;用小鼠测试了所合成的化合物的抗炎镇痛活性。结果与结论合成了 8个目标化合物 ;药理实验表明 ,所合成的一些化合物具有明显的抗炎和 /或镇痛活性 ,其中Ⅴ5活性最强。     

2-芳亚胺基-4-噻唑烷酮类化合物的合成及生物活性

目的设计、合成新的2-芳亚胺基-4-噻唑烷酮类化合物并研究其对一氧化氮合酶(NOS)的抑制活性。方法运用N-氯乙酰-1,2,3,4-四氢异喹啉或N-氯乙酰邻苯二甲酰亚胺与取代硫脲反应，简便地合成了15个新的2-芳亚胺基-4-噻唑烷酮类化合物，测试新合成的目标化合物的NOS抑制活性。结果和结论合成了15个新的2-芳亚胺基-4-噻唑烷酮类化合物，大部分反应收率大于65%。所有化合物的结构用¹H NMR，IR，MS及元素分析进行了表征。初步药理筛选结果表明，部分化合物具有NOS抑制活性。     

吡里酮二甲醇酯类化合物的合成及其抗炎镇痛活性

目的为探讨吡里酮类化合物抗炎镇痛作用的构效关系,设计合成了吡里酮二甲醇的单酯和二酯类化合物,并进行抗炎及镇痛活性试验.方法采用羟醛缩合反应和酯化反应合成目标化合物,以小鼠耳肿胀法和醋酸扭体法分别测定目标化合物的抗炎和镇痛活性.结果与结论合成得到了10个目标化合物(均未见文献报道),其结构经IR、1H-NMR、MS确定.药理实验表明,目标化合物均具有一定的抗炎或镇痛作用.     

3-甲基芬太尼衍生物构效关系及受体结合特征研究

对3-甲基芬太尼的1-苯乙基、4-N-丙酰基进行了结构改造、测定了所合成化合物的镇痛活性及部分化合物的镇痛作用持续时间、阿片受体亲和力和对阿片受体亚型的选择性。结果表明,大部分化合物均有较强的吗啡样镇痛活性,强度约为吗啡的2～180倍。所试化合物的镇痛作用持续时间比芬太尼延长6～10倍。化合物1～4的受体亲和力(IC₅₀)约为10^-7～10^-3mol。化合物13对阿片μ-受体有较高的选择性,对大鼠脑膜的λ/δ比值大于700,对小鼠脑膜的μ/δ比值为1000。     

四氢喹啉类化合物的合成及其镇痛活性研究

目的寻找具有镇痛活性的新型四氢喹啉类化合物,探讨4-（1H-吡咯-2-基）-1,2,3,4-四氢喹啉类化合物镇痛作用的构效关系。方法以4-（1H-吡咯-2-基）-1,2,3,4-四氢喹啉类化合物为母体,合成系列化合物。用醋酸致小鼠扭体法测定该类化合物的镇痛活性。结果与结论合成了20个新化合物,经1H-NMR和MS确证其结构。镇痛活性试验表明,所合成的部分化合物具有明显的镇痛作用,值得进一步研究。     

Synthesis of 4(1H)-pyridinone derivatives and investigation of analgesic and antiinflammatory activities.

This paper describes recent results of a research program aimed at the synthesis and pharmacological evaluation of new 4(1H)-pyridinone derivatives belonging to the 1,3-disubstituted series (4-11). These compounds were structurally planned by applying the molecular hybridization strategy on previously described 1,2-disubstituted-4(1H)-pyridinone derivatives, considered as lead compounds, which present potent analgesic properties (M.D. Aytemir, T. Uzbay, D.D. Erol, Arzneim. Forsch. (Drug Res.) 49 (1999) 250). Their chemical structures have been proved by means of their IR and 1H NMR data and by elemental analysis. The analgesic profile of the title compounds (4-11), evaluated by the model of abdominal constrictions induced by acetic acid, showed that all the 4(1H)-pyridinone derivatives were active, exhibiting an analgesic activity comparable with that of aspirin (acetyl salicylic acid) used as a standard. The antiinflammatory profile of the synthesized compounds, evaluated by the model of carrageenan rat paw edema, showed that all compounds were active and were comparable with indomethacin used as a standard.     

Synthesis of 3-(2-pyridylethyl)benzoxazolinone derivatives: potent analgesic and antiinflammatory compounds inhibiting prostaglandin E2.

Fourteen new 3-[2-(2- and/or 4-pyridyl)ethyl]benzoxazolinone derivatives have been synthesized by reacting 2- and/or 4-vinylpyridine and appropriate benzoxazolinones. Their chemical structures have been proven by IR, 1H-NMR, and elemental analysis. Analgesic activities of these compounds were investigated by a "Modified Koster's Test". Except for compounds 10 and 11, all the new derivatives showed higher analgesic activities than aspirin. Therefore the compounds were screened for their antiinflammatory activities using the carrageenan hind paw edema test. The compounds (6, 7, 8, 9, 14, and 17) that showed high antiinflammatory activity were then further screened for their ability to inhibit prostaglandin E2 (PGE2) induced paw edema. Although all the benzoxazolinone derivatives synthesized in this study showed higher antiinflammatory activity compared to indomethacin, those without a substituent at the 6-position of the ring were significantly more active than the rest of the group, and their ulcerogenic activities and ED50 values indicate them as promising derivatives for further study.     

Synthesis and analgesic-antiinflammatory activities of novel acylarylhydrazones with a 5-phenyl-4-R-3-pyrrolyl-acyl moiety

A new series of arylidene 5-phenyl-4-R-pyrrole-3-carbohydrazides 1a-j were prepared and evaluated for their analgesic-antiinflammatory activities. All synthesized compounds showed a significant analgesic action in mice after intraperitoneal administration at a dose of 100 microM/kg. Two of these, 1b, (4'-methylbenzylidene)-5-phenyl-1H-pyrrole-3-carbohydrazide, and 1d, (4'-chlorobenzylidene)-5-phenyl-1H-pyrrole-3-carbohydrazide, were found to be more potent as antinociceptive agents respect to dipyrone and indometacin, used as reference drugs. Among compounds 1, only 1b showed a moderate antiinflammatory effect in rats while 1d proved to be a potent non antiinflammatory analgesic.     

苯基呋咱氮氧化物与双氯芬酸偶联化合物的合成及其抗炎镇痛活性

目的寻找能增强双氯芬酸(DC)抗炎镇痛活性,又能降低其胃肠道副作用的一氧化氮供体型DC(NO-DC)。方法以酯键将NO供体3-羟甲基-4-苯基-呋咱氮氧化物及其异构体与DC偶联,考察偶联物的抗炎镇痛活性及胃肠道毒副反应,研究偶联物体内外的NO释放作用。结果合成了15个新化合物,其中目标物(II_1～9) 9个,其结构经IR,¹HNMR,MS和元素分析确证。II₃和II₉的抗炎活性与DC相当,II₂的抗炎镇痛活性强于DC,胃肠道副作用小于DC,并小于文献报道的硝酸酯类NO-DC,体内有明显的NO释放。结论II₂值得深入研究。     

Novel antiinflammatory analgesics: 3-(2-/4-pyridylethyl)-benzoxazolinone and oxazolo[4,5-b]pyridin-2-one derivatives

Twenty-two new 3-[2-(2-and/or 4-pyridyl)ethyl]benzoxazolinone and oxazolo[4,5-b]pyridin-2-one derivatives have been synthesized by reacting 2- and/or 4-vinylpyridine and appropriate benzoxazolinones and oxazolo[4,5-b]pyridine-2-one. Their chemical structures have been proven by IR. 1H-NMR, 13C-NMR, mass spectroscopy, and elemental analysis. The analgesic activities of these compounds were investigated by a modified Koster's Test. Test results revealed that, at 100 mg/kg dose level, most of the compounds showed significant analgesic activities when compared to aspirin. Therefore the compounds were screened for their antiinflammatory activities using the carrageenan hind paw edema test. Compounds 1, 7, 10, 11, 12, 13, 15, 18, 20, 21 were found more active than indomethacine. In gastric ulceration studies gastrointestinal bleeding was not observed at 100 mg/kg dose level in compounds 1 and 2.     

Novel Antiinflammatory Analgesics: 3-(2-/4-Pyridylethyl)-Benzoxazolinone and Oxazolo[4,5-β]pyridin-2-one Derivatives

Twenty-two new 3-[2-(2-and/or 4-pyridyl)ethyl]benzoxazolinone and oxazolo[4,5-b]pyridin-2-one derivatives have been synthesized by reacting 2-and/or 4-vinylpyridine and appropriate benzoxazolinones and oxazolo[4,5-b]pyridine-2-one. Their chemical structures have been proven by IR, ¹H-NMR, ¹³C-NMR, mass spectroscopy, and elemental analysis. The analgesic activities of these compounds were investigated by a modified Koster′s Test. Test results revealed that, at 100 mg/kg dose level, most of the compounds showed significant analgesic activities when compared to aspirin. Therefore the compounds were screened for their antiinflammatory activities using the carrageenan hind paw edema test. Compounds 1, 7, 10, 11, 12, 13, 15, 18, 20, 21 were found more active than indomethacine. In gastric ulceration studies gastrointestinal bleeding was not observed at 100 mg/kg dose level in compounds 1 and 2 .     

New derivatives of benzopyran-4-one with analgesic, anti-inflammatory and antiplatelet clumping activity

A series of 35 new derivatives of 3-benzylidene benzopyran-4-one carboxylic acid was synthesized; their antiinflammatory and analgesic activities were investigated and compared with those of acetylsalicylic acid, phenylbutazone, ketoprofene and glafenine. Among these compounds, four were found to be more potent than the references compounds in tests of antiinflammatory and analgesic activity. Seven compounds were tested on rat blood platelet aggregation induced by ADP. From these tests, HD-039, HD-041, HD-044 and HD-049 appear to be promising antiinflammatory, analgesic and anticlotting agents, although this original series shows little structural analogy with classical non-steroidal antiinflammatory agents.