在常温常压下保持稳定。
噻吩类化合物具有抗菌消炎、抗病毒和解痉挛等药理学活性。研究它们与牛血清白蛋白(BSA)的作用对理解其药代动力学及开发新药具有重要意义。
5-硝基噻吩-2-甲醛是有机合成中的重要中间体,不仅可作为药物中间体应用于医药工业,还可用于合成一系列硝基噻吩类席夫碱。
制备将0.1 mol 5-氯-2-硝基苯甲醛、0.005 mol 乙酸钯和0.006 mol 1,10-菲罗啉溶解于20 mL N,N-二甲基甲酰胺中,随后滴加0.15 mmol 六氢吡啶。在60℃下搅拌24小时后,将反应液倒入水中进行萃取,再通过重结晶得到5-硝基噻吩-2-甲醛,产率为63%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-氯甲基-5-硝基噻吩 | 2-(chloromethyl)-5-nitrothiophene | 20898-86-6 | C5H4ClNO2S | 177.611 |
(5-硝基噻吩-2-基)甲醇 | (5-nitrothiophen-2-yl)methanol | 20898-85-5 | C5H5NO3S | 159.166 |
—— | 2,2-dimethyl-1-(5'-nitro-2'-thienyl)-propane-1-one | 83054-95-9 | C9H11NO3S | 213.257 |
—— | (5'-nitro-2'-thienyl)methyl acetate | 20898-83-3 | C7H7NO4S | 201.203 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-硝基-2-甲基噻吩 | 2-methyl-5-nitrothiophene | 42297-94-9 | C5H5NO2S | 143.166 |
2-乙酰基-5-硝基噻吩 | 2-acetyl-5-nitrothiophene | 39565-00-9 | C6H5NO3S | 171.177 |
5-硝基噻吩-2-羰酰氯 | 5-nitrothiophene-2-carbonyl chloride | 39978-57-9 | C5H2ClNO3S | 191.595 |
5-硝基噻吩-2-甲酸 | 5-nitrothiophene-2-carboxylic acid | 6317-37-9 | C5H3NO4S | 173.149 |
2-(溴甲基)-5-硝基-噻吩 | 2-(bromomethyl)-5-nitrothiophene | 166887-84-9 | C5H4BrNO2S | 222.062 |
2-氯甲基-5-硝基噻吩 | 2-(chloromethyl)-5-nitrothiophene | 20898-86-6 | C5H4ClNO2S | 177.611 |
(5-硝基噻吩-2-基)甲醇 | (5-nitrothiophen-2-yl)methanol | 20898-85-5 | C5H5NO3S | 159.166 |
5-硝基噻酚-2-甲腈 | 5-nitro-2-thienyl cyanide | 16689-02-4 | C5H2N2O2S | 154.149 |
5-硝基-噻吩-2-甲酸甲酯 | methyl 5-nitrothiophene-2-carboxylate | 5832-01-9 | C6H5NO4S | 187.176 |
—— | 5-nitrothiophene-2-carbaldehyde oxime | 6030-18-8 | C5H4N2O3S | 172.164 |
—— | 5-nitrothiophene-2-aldoxime | 104416-19-5 | C5H4N2O3S | 172.164 |
—— | 5-nitro-thiophene-2-carboxylic acid allylamide | 133628-36-1 | C8H8N2O3S | 212.229 |
—— | (2E)-3-(5-nitro-2-thienyl)-2-propenal | 62391-19-9 | C7H5NO3S | 183.188 |
3-(5-硝基噻吩-2-基)丙-2-烯醛 | β-(5-nitro-2-thienyl)acrylaldehyde | 62391-19-9 | C7H5NO3S | 183.188 |
—— | tert-butyl 5-nitrothiophene-2-carboxylate | 62224-28-6 | C9H11NO4S | 229.257 |
—— | (3E)-4-(5-nitro-2-thienyl)-3-buten-2-one | 57559-00-9 | C8H7NO3S | 197.214 |
—— | 3t-(5-nitro-[2]thienyl)-acrylic acid amide | 98550-02-8 | C7H6N2O3S | 198.202 |
—— | 3-(5-nitrothiophen-2-yl)propenoic acid | 17163-22-3 | C7H5NO4S | 199.187 |
3-(5-硝基-2-噻吩)丙烯酸 | 3-(5-nitro-2-thienyl)-2-propenoic acid | 50868-70-7 | C7H5NO4S | 199.187 |
—— | (E)-3-(5-nitrothiophen-2-yl)acryloyl chloride | 55785-89-2 | C7H4ClNO3S | 217.633 |
—— | 2-(5-nitrothiophen-2-ylmethylene)malononitrile | 84653-70-3 | C8H3N3O2S | 205.197 |
—— | 1-(5-nitrothiophen-2-yl)ethan-1-ol | 74786-64-4 | C6H7NO3S | 173.192 |
—— | 2-nitro-5-(2-nitro-vinyl)-thiophene | 34210-00-9 | C6H4N2O4S | 200.175 |
—— | 5-nitro-2-thiophene semicarbazone | 6286-12-0 | C6H6N4O3S | 214.205 |
—— | 2-((5-nitrothiophen-2-yl)methylene)hydrazinecarbothioamide | 5351-83-7 | C6H6N4O2S2 | 230.271 |
—— | 5-nitro-2-thiophene thiosemicarbazone | 5351-83-7 | C6H6N4O2S2 | 230.271 |
—— | 2-nitro-N-(oxiranylmethyl)thiophene-5-carboxamide | 133628-37-2 | C8H8N2O4S | 228.229 |
—— | 5-(dimethoxymethyl)-2-nitrothiophene | 17375-68-7 | C7H9NO4S | 203.219 |
—— | 2-nitro-5-benzylthiophene | 37715-64-3 | C11H9NO2S | 219.264 |
—— | (E)-1-(5-Nitrothiophen-2-yl)-N-phenylmethanimine | 40619-46-3 | C11H8N2O2S | 232.263 |
—— | methyl N-[(5-nitrothiophen-2-yl)methylideneamino]carbamate | —— | C7H7N3O4S | 229.216 |
—— | 1-[2-(5-nitrothienyl)methylene]-4-hydroxysemicarbazide | 395639-36-8 | C6H6N4O4S | 230.204 |
—— | 2-bromo-3ξ-(5-nitro-[2]thienyl)-acrylaldehyde | 17164-74-8 | C7H4BrNO3S | 262.084 |
—— | methanesulfonic acid (5-nitrothiophen-2-yl)methanol ester | 946126-96-1 | C6H7NO5S2 | 237.257 |
—— | 5-nitro-thiophene-2-carbaldehyde phenylhydrazone | 91093-51-5 | C11H9N3O2S | 247.277 |
—— | N-(4-chlorobenzyl)-1-(5-nitrothiophen-2-yl)methanamine | 1384516-10-2 | C12H11ClN2O2S | 282.751 |
—— | 3-(5-nitro-thiophen-2-yl)-acrylic acid ethyl ester | 17163-21-2 | C9H9NO4S | 227.241 |
—— | N-(cyclohexylmethyl)-1-(5-nitrothiophen-2-yl)methanimine | 78060-09-0 | C12H16N2O2S | 252.337 |
—— | N-cyclohexyl-1-(5-nitrothiophen-2-yl)methanimine | 69819-73-4 | C11H14N2O2S | 238.31 |
—— | (5-nitro-thiophen-2-ylmethylene)-[1,2,4]triazol-4-yl-amine | 31539-41-0 | C7H5N5O2S | 223.215 |
N-(4-溴苯基)-1-(5-硝基噻吩-2-基)甲亚胺 | N-(5-nitro-2-thienomethylidene)-4-bromoaniline | 64857-15-4 | C11H7BrN2O2S | 311.159 |
A library of dihydropyrimidinones was synthesized via a “one-pot” three component Biginelli reaction using different aldehydes in combination with β-dicarbonyl compounds and urea. Selected 2-thiooxo and 2-imino analogs were also obtained with the Biginelli reaction from thiourea and guanidine hydrochloride, respectively. The products were screened in vitro for their β-secretase inhibitory activity. The majority of the compounds resulted to be active, with IC50 in the range 100 nM–50 μM.