Heterocyclic Building Blocks-piperidine

1187173-43-8, 2,7-Diazaspiro[4.5]decan-1-one hydrochloride is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

2,7-Diazaspiro[4.5]decan-1 -one hydrogen chloride (80 mg, 0.420 mmol) was dissolved in dichloromethane (4 mL) and triethylamine (0.1 17 ml_, 0.839 mmol) before the addition of 2,4-dimethylbenzenesulfonyl chloride (94 mg, 0.462 mmol). After stirring for 20 h the reaction mixture was concentrated in vacuo and the resulting residue was purified by MDAP to give 7-[(2,4-dimethylphenyl)sulfonyl]-2,7- diazaspiro[4.5]decan-1 -one (64.4 mg, 0.190 mmol, 45% yield) as a white solid. 1 H NMR (500 MHz, DMSO-d6) delta ppm 7.71 (s, 1 H) 7.66 (d, J=8.0 Hz, 1 H) 7.26 (s, 1 H) 7.22 (d, J=8.1 Hz, 1 H) 3.59 (d, J=12.0 Hz, 1 H) 3.23 (d, J=1 1 .7 Hz, 1 H) 3.15 (m, 1 H) 3.09 (m, 1 H) 2.50 (s, 3 H) 2.48 (m, 2 H) 2.35 (s, 3 H) 1 .91 (t, J=6.9 Hz, 2 H) 1.69 (dt, J=12.8, 2.8 Hz, 1 H) 1.54 (m, 1 H) 1.48 (m, 2 H). MS ES+ve m/z 323 (M+H).

1187173-43-8, 1187173-43-8 2,7-Diazaspiro[4.5]decan-1-one hydrochloride 45074126, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; CONVERGENCE PHARMACEUTICALS LIMITED; GLEAVE, Robert James; HACHISU, Shuji; PAGE, Lee William; BESWICK, Paul John; WO2011/141728; (2011); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.140645-24-5,(S)-3-(Aminomethyl)-1-N-Boc-piperidine,as a common compound, the synthetic route is as follows.

Example 6: Preparation of (S)-fert-butyl 3-((2-((Z)-(2,6-dimethylphenylimino)-((?)-2-(4- (l-(4-(trifluoromethoxy)phenyl)-lH-l,2,4-triazol-3-yl)benzylidene)hydrazinyl)- methylthio)acetamido)methyl)piperidine-l-carboxylate (Compound 56C) (Synthesis Method E)To a solution of bromoacetyl bromide (26 microliters (mu), 0.299 mmol) in dichloroethane (3 mL) was added dropwise a solution of (5)-i140645-24-5

The synthetic route of 140645-24-5 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; DOW AGROSCIENCES LLC; CROUSE, Gary D.; SPARKS, Thomas C.; DENT, William Hunter; MCLEOD, CaSandra Lee; CREEMER, Lawrence C.; WO2012/109125; (2012); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

141774-61-0, tert-Butyl (piperidin-2-ylmethyl)carbamate is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A reaction flask charged with capsaicin (1 eq) and ethyl acetate, cooled to 0 – 10 C, and then DIPEA (3 eq) was added followed by the addition of nitrophenylchloroformate (1.0 eq) as a solution in ethyl acetate at 0 – 10 C. The resulting mixture was stirred at 0 – 10 C for 15 min. Next, HOBt (0.1 eq) was added, followed by A-1 free base (1.2 eq) at 0 – 10 C. The resulting mixture was stirred overnight after warming to room temperature. The reaction mixture was worked up by successive extractions with IM aq. NaOH (3x), IM aq. HCl, water and finally brine solution. The resulting organic layer was removed, dried over sodium sulfate and filtered to afford A-2 in an ethyl acetate solution. The crude product was used in the following reaction without further manipulation., 141774-61-0

The synthetic route of 141774-61-0 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; CONCENTRIC ANALGESICS, INC.; DONOVAN, John F.; HUSFELD, Craig; (120 pag.)WO2018/217937; (2018); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.118133-15-6,1-(Ethoxycarbonyl)piperidine-4-carboxylic acid,as a common compound, the synthetic route is as follows.

In dichloromethane (2 mL) solution of 1-(ethoxycarbonyl)piperidine-4-carboxylic acid (17 mg, 0.0766×1.1 mmol) under ice-cooling, and argon gas atmosphere. 1-ethyl-(3-dimethylaminopropyl)-carbodiimide hydrochloride (16 mg, 0.0766×1.1 mmol) and 1-hydroxybenzotriazol monohydrate (13 mg, 0.0766×1.1 mmol) were added and stirred for 30 minutes. Subsequently, 4-chloro deacetyl colchicine (30 mg, 0.0766 mmol) was added, and stirred overnight, temperature is increased to room temperature gradually. Reaction mixture was purified by flash chromatography (equipment: Biotage Isolera One, and chloroform/methanol), to obtain title compound (an opalescence solid, 41 mg, 0.0714 mmol, 93%) .

118133-15-6, The synthetic route of 118133-15-6 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; CHIBA UNIVERSITY; YAKULTHONSHA COMPANY LIMITED; TAKAYAMA, HIROMITSU; YASOBU, NAOKO; KITAJIMA, MARIKO; YAEGASHI, TAKASHI; MATSUZAKI, TAKESHI; NAGAOKA, MASATO; HASHIMOTO, SHUSUKE; NISHIYAMA, HIROYUKI; SUGIMOTO, TAKUYA; ONO, MASAHIRO; (176 pag.)JP5829520; (2015); B2;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.14813-01-5,1-Benzylpiperidin-3-ol,as a common compound, the synthetic route is as follows.

Step 1: To a stirred solution of [5] (l .Og, 5.2mmol) in DCM (20.0ml) was added TEA (1.9g, 15.2mmol) at room temperature. After an additional stirring for 5 minutes at same temperature, Mesyl chloride (0.55ml, 7.8mmol) was added. The reaction temperature was allowed to stirred at this temperature for 3h. TLC showed complete consumption of starting material. Water (100 ml) was added and organic layer was extracted with ethyl acetate (2 x 100 ml). The combined organic layers were washed with water, brine and dried over sodium sulphate. The organic layer was concentrated to afford light brown sticky material [9] which was used further without any purification (l.lg, 78%).Analytical Data: [9]ESIMS: 270 [M++l]., 14813-01-5

14813-01-5 1-Benzylpiperidin-3-ol 85773, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; SPHAERA PHARMA PVT. LTD.; DRUG DISCOVERY RESEARCH CENTRE; DUGAR, Sundeep; MAHAJAN, Dinesh; RAI, Santosh Kumar; RAO, Kanury; SINGH, Varshneya; WO2015/181837; (2015); A2;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

236406-22-7, 1-Boc-4-(Aminomethyl)-4-methylpiperidine is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step 6. Synthesis of 4-benzyloxycarbonylaminomethyl-1-{(2R)-2-((1R)-3,3-difluorocyclopentyl)-2-hydroxy-2-phenylacetyl}-4-methylpiperidine The title compound was prepared by a method similar to Step 3 for Example 1, using 4-benzyloxycarbonylaminomethyl-4-methylpiperidine.

236406-22-7, As the paragraph descriping shows that 236406-22-7 is playing an increasingly important role.

Reference：
Patent; Banyu Pharmaceutical Co Ltd; US6140333; (2000); A;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

20691-89-8, 1-Methyl-4-piperidinemethanol is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 7-fluoro-6-methoxy-4-oxo-1,4-dihydro-3-quinolinecarbonitrile (1.5 g, 6.9 mmol) and (1-methylpiperidin-4-yl)-methanol (1.8 g, 13.7 mmol) (WO 200471212) and a 60% dispersion in mineral oil of sodium hydride (0.8 g, 34.4 mmol) is heated at 110 C. for 2 hours. The reaction mixture is quenched with methanol, concentrated, and azeotroped with toluene to give 2.25 g of a brown solid. A mixture of this solid and phosphorous oxychloride (15 mL, 159 mmol) is heated at reflux for 30 minutes then concentrated in vacuo. The residue is partitioned between aqueous sodium bicarbonate and methylene chloride. The organic layer is dried over sodium sulfate, filtered and concentrated on to silica gel. Purification by column chromatography eluting with a gradient of 1:9 methanol:methylene chloride to 0.05:1:5 triethylamine:methanol:methylene chloride provided 1.6 g of 4-chloro-6-methoxy-7-[(1-methylpiperidin-4-yl)methoxy]quinoline-3-carbonitrile, mp 166-168 C. [0351] MS 346 (M+H)+ [0352] Analysis for C18H20ClN3O2-1 HCl+0.5 H2O [0353] Calcd: C, 54.72; H, 5.54; N 10.50. [0354] Found: C, 54.72; H, 6.07; N 10.05., 20691-89-8

The synthetic route of 20691-89-8 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; Wyeth Holdings Corporation; US2003/212276; (2003); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.7006-50-0,4-(Methylamino)-1-benzylpiperidine,as a common compound, the synthetic route is as follows.,7006-50-0

Preparation 21; N-(1-Benzy(piperidin-4-yl)-N-methyipyridin-2-amine A mixture of 4-methylamino-1-benzylpiperidine; [(1.5g, 6.2mmol), J. Med. Chem. 39, 3769-89; 1996] 1-bromopyridine (0.98g, 6.2mmol), sodium tert-butoxide (0.68g, 7.3mmol), 1,3-bis(diphenylphosphino)propane (102mg, 0.24mmol) and tris (dibenzylideneacetone)dipalladium(O) (113mg, 0.12mmol) in toluene (20mL) was heated under reflux for 4 hours. Tlc analysis showed that there was still starting material present and so further bromopyridine (0.49g, 3.1 mmol), tris (dibenzylideneacetone)dipalladium(0) (113mg, 0.12mmol), bis(diphenylphosphino)propane (102mg, 0.24mmol) and sodium tert-butoxide (0.68g, 7.3mmol) were added and heating continued for a further 3 hours. The mixture was then diluted with dichloromethane and washed with brine. The organic solution was dried over magnesium sulfate and concentrated in vacuo and the residue was purified by column chromatography on silica gel, eluting with dichloromethane: methanol: 0. 88 ammonia, 90: 10:1 to afford the title compound in 40% yield, 0.69g.

7006-50-0 4-(Methylamino)-1-benzylpiperidine 4136128, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; PFIZER LIMITED; PFIZER INC.; WO2005/105779; (2005); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

929252-65-3, tert-Butyl 4-(((4-(4-amino-2-fluorophenoxy)-6-methoxyquinolin-7-yl)oxy)methyl)piperidine-1-carboxylate is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,929252-65-3

Step 1: preparation of tert-butyl 4-[[4-[2-fluoro-4-[[1-[(4-fluorophenyl) aminocarbonyl]cyclopropanecarbonyl]amino]phenoxy]-6-methoxyl-7-quinolyl] oxymethyl]piperidine-1-carboxylate: a mixture of intermediate C (1.5 g or 3.0 mmol), intermediate D (1.7 g or 7.6 mmol), DIPEA (1.55 g or 12.0 mmol), HATU (2.3 g or 6.0 mmol), DMAP (0.183 g or 1.5 mmol) in DMF (60 mL) is stirred at 30-40 C overnight. The mixture is concentrated under reduced presure, and the residue is purified by column chromatography (eluent: 1-5% MeOH in DCM) to obtain 1.9 g target compound (yield: 90%). The analytical data of the obtained product are as follows: mass spectrum m/z: 703.30 [M+H].

The synthetic route of 929252-65-3 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; Beijing Konruns Pharmaceutical Co., Ltd.; YUN, Ziwei; WANG, Hongtao; EP2669289; (2013); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

61995-20-8, Benzyl 3-oxopiperidine-1-carboxylate is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

61995-20-8, General procedure: The reaction mixture containing 200 mM substrate, 1mM NAD+, 5% (v/v) 2-propanol and 10mg crude enzyme READH in 1mL potassium phosphate buffer (100mM, pH 7.0) was incubated at 50 C. For ChKRED20, 40% (v/v) 2-propanol and a reaction temperature of 40 C were applied instead. The reaction was monitored by TLC, and terminated by extracting with methyl tert-butyl ether (1 mL). The organic extract was dried over anhydrous sodium sulfate and concentrated. The samples were subjected to chiral HPLC to determine the conversion and enantiomeric excess. The products were purified by silica gel column chromatography, and identified by NMR analysis, optical rotation measurements and mass spectrometry.

61995-20-8 Benzyl 3-oxopiperidine-1-carboxylate 1514169, apiperidines compound, is more and more widely used in various fields.

Reference：
Article; Li, Chao; Liu, Yan; Pei, Xiao-Qiong; Wu, Zhong-Liu; Process Biochemistry; vol. 56; (2017); p. 90 – 97;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem