A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

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Methods Starting from 2-chloro-4-nitrophenol and 2- pyridine hydrochlorid, 3-chloro-4-(pyridin-2-ylmethoxy) aniline was obtained via etherization and reduction. The obtained aniline coupled with N-(4-chloro-3-cyano-7-ethoxyquinolin-6-yl) acetamide to give 4-[3-chloro-4-(2-pyridylmethoxy) phenylamino]-3-cyano-7-ethoxy-6-N-acetylaminoquinoline. And then it was deacetylated, followed by reacting with4- but-2-enoyl chloride to yield the target compound neratinib.

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Cobalt forms colored complexes with pyridire,,β-picoline and γ-picoline in aqueous solutions.

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Picoline was treated with hydrogen peroxide to form intermediate N-oxide-3- methylpyridine then chloridized with benzoyl chloride to form 2-chloro-5-methylpyridine.

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Based on broad information collection, author compared and studied on the old synthesis process, and proposed the better process that started from benzyl chloride, then according to the sequence of " synthesis of benzylamine, synthesis of N-benzyl-N--acetamine, synthesis of 2-chloro-5-methylpridine ,2-chloro-5-trichloromethylpyridine,2-chloro-5-trifluropyridine " five steps to get the final product, CTFP.

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Benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene]dichloro(2-methylpyridine)ruthenium (62), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] dichloro(2,4-dimethylpyridine)ruthen ium (63) introduce ortho substituted pyridine as dissociating ligand to weaken Ru-N bondand accelerate dissociation of pyridine derivative ligand through steric hindrance.

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But on the industry, many with the alkyl bandaging, such as bandaging , ergadebidi...

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Based on the research and development of synthesis of halogenated pyridines the paper chose the electrochemical reduction as a research direction, and to 3,4,5,6–tetrachloropicolinic acid, pentachloropyridine, 3,4,5,6-tetrachloro-2-trichloromethylpyridine for raw materials, the reduction behavior on silver and carbon -containing silver electrode was mainly studied.

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A process for synthesis of-2-{[4-(3-methoxypropoxy)-3-methyl-pyridin-2-yl]methyl- sulfinyl}-1H-benzimidazole from 2,3-lutidine was studied.

以2色综合视频久久，3-二甲基吡啶為起始原料，經過11步反應777av视频，不對稱合成了質子泵抑制劑的關鍵中間體：-2-{[4-(3-甲氧基丙氧基)-3-甲基吡啶-2-基]甲基亞硫跞巳嗣巳私唬基}-1H-苯并咪唑。

The effects of pyridine substitutive derivations on the metabolic pathway of Blakeslea Trispora, were studied such as 2,6-dimethylpyridine,2,5-dimethylpyridine, 2-amino-6-methylpyridine and tobacco dust which contains mainly 3-pyridine substitutive derivation.

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parvoline：四甲基吡啶(一種腐敗魚或馬肉中的有毒鹼)

partslist零件明細表 | parvoline四甲基吡啶(一種腐敗魚或馬肉中的有毒鹼) | parvule小粒;小球;小丸

picoline：甲基吡啶

picofarad 微微法 | picoline 甲基吡啶 | picosecond 微微秒

picoline：甲基吡啶 皮考啉

picolinamide 吡啶酰胺 | picoline 甲基吡啶 皮考啉 | picolinicacid 甲基吡啶酸

picoline benzyl ammonium chloride：甲基吡啶芐基氯化銨

甲基吡咯烷酮羧酸十二烷酯 lauryl methyl PCA | 甲基吡啶芐基氯化銨 picoline benzyl ammonium chloride | 加防腐劑的聚硅氧烷消泡劑乳液 silicone defoamer emulsion with preservatives

5-Bromo-2-methyl pyridine：5-溴-2-甲基-吡啶

268 4-碘苯磺酸鉀(對碘苯磺酸鉀) 4-Iodo-benzenesulfonic acid potassium-salt 13035-63-7 | 269 5-溴-2-甲基-吡啶 5-Bromo-2-methyl-pyridine 3430-13-5 | 270 4-硝基-1-萘酚 4-Nitro-1-naphthol 605-62-9

collidine：可力丁; 三甲基吡啶

collidine synthesis | 可力丁合成 | collidine | 可力丁; 三甲基吡啶 | collidinium molybdophosphate | 鉬磷酸可力丁

lutidine：二甲基吡啶

luteolysis 黃體溶解 | lutidine 二甲基吡啶 | lutropin 促黃體素,黃體生成素

parthenogenetic embryo：單性胚,四甲基吡啶

parthenogenetic embryo 單性胚,四甲基吡啶 | parthenogonidium 孤雌生殖細胞 | parthenomixis 孤雌兩核融合

tetramethyl：四甲基吡啶

C010060 順丁烯二酸酐(即失水草果酸酐) maleic acid anhyride | C010155 四甲基吡啶 tetramethyl | 010528 四氯化碳 Carbon tetrachloride

trimethyl pyridine：三甲基吡啶

trimethyl phosphite 亞磷酸三甲酯 | trimethyl pyridine 三甲基吡啶 | trimethyl-ethylene 三甲基乙烯