Heterocyclic Building Blocks-piperidine

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 4-[(2, 4-dichloro-5-methoxyphenyl) amino3-6-ethoxy-7-fluoro-3- quinolinecarbonitrile (200 mg, 0.49 mmol), 1-methylpiperidine-4-methanol (1888 mg, 0.98 mmol) (WO 20047212) and sodium hydride (196 mg, 4.6 mmol) in 5 mL of N, N-dimethylformamide was heated at 125C for 3 hours. The reaction mixture was poured into saturated sodium bicarbonate and stirred for 1 hour. The solid was collected by filtration, washed with water and dried in vacuo. The solid was purified by preparative thin layer chromatography, eluting with 15% methanol in dichloromethane. Trituation with diethyl ether provided 67 mg of 4-[(2,4-dichloro-5- methoxyphenyl) amino]-6-ethoxy-7- [ (1-methylpiperidin-4-yl) methoxy] quinoline-3- carbonitrile as a light brown solid, mp 182-186C. MS 513. 0 (M-H)- Analysis for C2gH28CI2N403-1. 4 H20 Calcd : C, 57.76 ; H, 5.74 ; N, 10.36. Found: C, 57.65 ; H, 5.43 ; N, 10.15., 20691-89-8

As the paragraph descriping shows that 20691-89-8 is playing an increasingly important role.

Reference：
Patent; WYETH; WO2005/47259; (2005); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

885279-92-5, 1-Boc-1,8-diaza-spiro[4.5]decane is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a stirred solution of C2 and TEA (1.2 eq) in DMF (0.3 M) was added TBTU (1.3 eq). The mixture was and stirred for Ih and tert-butyl l,8-diazaspiro[4.5]decane-l-carboxylate together with TEA (4 eq) was added. The mixture was stirred for 2h and the product was purified by preparative RP-HPLC, using H2O/ACN (0.1% TFA) as eluents. The pooled fraction were concentrated under reduced pressure and the remaining oil was (C3) stirred for 30 min in a mixture of TFA/DCM (1:1). The solvents were removed under reduced pressure and the residue was lyophilized from H2O/ ACN. The title compound was obtained as a slightly orange foam.1U NMR (400 MHz, DMSO-d6) delta: 8.65 (2H, br. s), 8.17-8.10 (IH, m), 7.86 (s, IH), 7.84- 7.75 (m, 2H), 7.52-7.41 (m, 2H), 7.36-7.25 (m, 2H), 5.74 (s, 2H), 4.10-3.99 (m, IH), 3.31-3.07 (m, 5H), 2.00-1.72 (m, 6H), 1.69-1.60 (m, 2H). MS (ES) C24H25FN4O2 requires: 420, found: 421 (M+H)+., 885279-92-5

As the paragraph descriping shows that 885279-92-5 is playing an increasingly important role.

Reference：
Patent; ISTITUTO DI RICERCHE DI BIOLOGIA MOLECOLARE P. ANGELETTI S.P.A.; WO2009/27730; (2009); 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.10338-57-5,4-(Piperidin-1-yl)benzaldehyde,as a common compound, the synthetic route is as follows.

10338-57-5, General procedure: o-amino thiophenol (1mmol), aromatic aldehyde (1.1mmol) andwater (10mL) were mixed in 25mL single neck round bottom flask, andto this Ammonium Nickel Sulphate (10 mol %) was added. The reactionmixture was sonicated at room temperature (250C) for the appropriate time(Table 2, entries 13-25), and the progress of reaction was monitored by TLC.After completion of reaction, the mixture was extracted with ethyl acetate(2×10mL). The combined organic layer was dried over anhydrous Na2SO4 andevaporated under reduced pressure; the crude material was purified by columnchromatography over silica gel to afford products 4a-4m with high purity.

As the paragraph descriping shows that 10338-57-5 is playing an increasingly important role.

Reference：
Article; Pardeshi, Sandeep D.; Sonar, Jayant P.; Pawar, Shivaji S.; Dekhane, Deepak; Gupta, Sunil; Zine, Ashok M.; Thore, Shivaji N.; Journal of the Chilean Chemical Society; vol. 59; 1; (2014); p. 2335 – 2340;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.10338-57-5,4-(Piperidin-1-yl)benzaldehyde,as a common compound, the synthetic route is as follows.

General procedure: Chalcones analogs were synthesized by Claisen-Schmidt condensation reaction using appropriate equimolar amounts of substituted acetophenones and benzaldehydes in MeOH. NaOH was dissolved in the least amount of water and added dropwise (3mmol) (Scheme 1). Reactions were stirred overnight. All reactions were monitored by TLC using appropriate solvent or mixture of solvents. When the reaction was complete, the obtained precipitate was filtered, washed with cold methanol and dried under vacuum. The crude products were crystallized from different solvent systems based on their solubility or purified by column chromatography to give pure crystalline compounds., 10338-57-5

The synthetic route of 10338-57-5 has been constantly updated, and we look forward to future research findings.

Reference：
Article; Elkhalifa, Dana; Siddique, Abu Bakar; Qusa, Mohammed; Cyprian, Farhan S.; El Sayed, Khalid; Alali, Feras; Al Moustafa, Ala-Eddin; Khalil, Ashraf; European Journal of Medicinal Chemistry; vol. 187; (2020);,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.63845-28-3,2-(1-((Benzyloxy)carbonyl)piperidin-4-yl)acetic acid,as a common compound, the synthetic route is as follows.

(4-({ [(3-Chloro-pyrazin-2-yl)-(2-phenyl-quinolin-7-yl)-methyl]-carbamoyl}-methyl)- piperidine-1-carboxylic acid benzyl ester); [1123] (3-Chloropyrazin-2-yl)(2-phenylquinolin-7-yl)-methanamine (120.00 mg, 0.35 mmol), EDC (100.64 mg, 0.53 mmol) and HOBt (47.29 mg, 0.35 mmol) were suspended in CH2C12 (2 mL) and charge with DIEA (122.00 muL, 0.70 mmol) followed by the addition of 1- N-Cbz-4-piperidineacetic acid (127.56 mg, 0.46 mmol). The reaction mixture was stirred at rt for 16 h. The reaction mixture was diluted with CH2Cl2 (10 mL) and washed with saturated NaHC03 (2 x 20 mL) and brine (2 x 20 mL). The organic layer was dried over Na2S04 and concentrated in vacuo. The crude product was purified by a 10 g Jones silica gel (wetted with 50% EtOAc/ Hexane, dried loaded onto silica, and run with 60% EtOAc/ Hexanes – 70% EtOAc/ Hexanes) affording the desired product; ?H NMR (400 MHz, CHLOROFORM-d) 8 8.56 (1 H, d, J=2.47), 8.39 (1 H, d, J= 2.50), 8.23 (1 H, d, J= 4.77), 8.11 (2 H, d, J= 7.06), 7.85 (3 H, dd, J= 8.60, J= 8.38), 7.74 (1 H, s), 7.50 (3H, m), 7.32 (6H, m), 6.78 (1 H, d, J= 7.76), 5.10 (2 H, s), 4.11 (2 H, m), 2.75 (2 H, m), 2.21 (2 H, d, J= 7.00), 2.01 (1 H, m), 1.67 (2 H, m), 1.15 (2 H, d, J= 8.921) ; MS (ES+): m/z 605.96/606.98/608.93 (100/40/15) [MH(at)] ; HPLC: tR = 3.33 min. (OpenLynx, nonpolar_5min.).

63845-28-3, The synthetic route of 63845-28-3 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; OSI PHARMACEUTICALS, INC.; WO2005/97800; (2005); 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.13096-31-6,5-Hydroxypiperidine-2-carboxylic acid,as a common compound, the synthetic route is as follows.,13096-31-6

To a mixture of 413 5-hydroxypiperidine-2-carboxylic acid (62 g, 427.13 mmol, 1 eq.) and Boc2O (102.54 g, 469.84 mmol, 107.94 mL, 1.1 eq.) in 46 dioxane (500 mL) was added 358 NaOH (34.17 g, 854.25 mmol, 2 eq.) and the mixture was stirred at 25 C. for 18 hrs. The mixture was then concentrated to remove dioxane and the pH was adjusted to 2-3 by addition of 1N HCl solution. The aqueous phase was extracted with 2-Me-THF (500 mL*3). The combined organic layers was dried over Na2SO4, filtered and concentrated to give 415 1-tert-butoxycarbonyl-5-hydroxy-piperidine-2-carboxylic acid (40 g, crude) as yellow oil. ESI [M+Na]=267.9

As the paragraph descriping shows that 13096-31-6 is playing an increasingly important role.

Reference：
Patent; Cyteir Therapeutics, Inc.; Castro, Alfredo C.; McComas, Casey Cameron; Vacca, Joseph; Maclay, Tyler; (132 pag.)US2019/77799; (2019); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

683233-14-9, (R)-tert-Butyl 2-(aminomethyl)piperidine-1-carboxylate is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of (1S,3?R,6?R,7?S,8?E,11?S,12?R)-6-chloro-7?-(2-methoxyethoxy)- 11?, 12? -dimethyl- 15? -oxo-3,4-dihydro-2H-spiro[naphthalene-1,22?-[20joxa[13jthia[1,14jdiazatetracyclo[14.7.2.03,6.&-49,24jpentacosa[8,16,18,24jtetraenej-7?-carbaldehyde 13?,13?-dioxide (55 mg, 0.080 mmol) and (R)-tertbutyl 2-(aminomethyl)piperidine-1-carboxylate (172 mg, 0.803 mmol) in 1,2-dichloroethane (0.8 mL) was stirred at room temperature for 14 h. Sodiumtriacetoxyborohydride (0.059 mL, 0.401 mmol) was added to the mixture and the mixture was then stirred at room temperature for 1 h. The mixture was dilutedwith MeOH (5 mL) and silica gel was added. The mixture was concentrated and dried in vacuo. The solid mixture was then purified by silica gel columnchromatography (solid loading, 0% to 100% EtOAc/heptane) provided 2-methyl-2-propanyl (2R)-2-(((((1S,3?R,6?R,7?S,8?E,1 1?S,12?R)-6-chloro-7?-(2-methoxyethoxy)- 11?, 12?-dimethyl- 13?, 13? -dioxido- 15 ?-oxo-3,4-dihydro-2H- spiro [naphthalene- 1,22? -[20joxa[13jthia[1,14jdiazatetracyclo[14.7.2.03,6.019,24jpentacosa[8,16,18,24jtetraenj -7? -yl)methyl)amino)methyl)- 1 -piperidinecarboxylate (64 mg, 0.072mmol, 90 % yield) as a light yellow solid. MS (ESI, -1-ye ion) m/z 883.5 (M+H)t, 683233-14-9

683233-14-9 (R)-tert-Butyl 2-(aminomethyl)piperidine-1-carboxylate 1502021, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; AMGEN INC.; HARRINGTON, Paul E.; ASHTON, Kate; BROWN, Sean P.; KALLER, Matthew R.; KOHN, Todd J.; LANMAN, Brian Alan; LI, Kexue; LI, Yunxiao; LOW, Jonathan D.; MINATTI, Ana Elena; PICKRELL, Alexander J.; STEC, Markian M.; TAYGERLY, Joshua; (991 pag.)WO2018/183418; (2018); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

10338-57-5, 4-(Piperidin-1-yl)benzaldehyde is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Appropriate 2-((5-substitutedbenzothiazol-2-yl)thio) acetohydrazide (3a-3b) (0.002 mol), 4-substitutedbenzaldehyde (0.002 mol) and glacial acetic acid (0.1 mL) were refluxed in EtOH for 2 h. The mixture was cooled down in an ice-bath, precipitated product was filtered, dried and recrystallized from EtOH., 10338-57-5

The synthetic route of 10338-57-5 has been constantly updated, and we look forward to future research findings.

Reference：
Article; Osmaniye, Derya; Levent, Serkan; Karaduman, Abdullah Burak; Ilg?n, Sinem; Zkay, Yusuf; Kaplancikli, Zafer Asim; Molecules; vol. 23; 5; (2018);,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.39514-19-7,Ethyl 1-benzyl-3-oxopiperidine-4-carboxylate,as a common compound, the synthetic route is as follows.

Step A. 3-Oxo-piperidine-1 ,4-dicarboxylic acid 1 -tert-butyl ester 4-ethyl ester. A mixture of 1 -benzyl-3-oxo-piperidine-4-carboxylic acid ethyl ester (1 1 .31 g, 38 mmol), di-t-butyl dicarbonate (8.78 g, 40.2 mmol), Et3N (5.4 ml_, 38.7 mmol) and Pd(OH)2 on carbon (20percent on dry basis-Pearlman’s catalyst) (1 .3 g) were taken into EtOH (1 10 ml_). The mixture was hydrogenated at 60 psi for 24 h in a Parr bottle. The catalyst was removed by filtration and the filtrate was concentrated to dryness to tan solid. Crude residue was shaken well with hexane (100 ml_) and filtered. The filtrate was concentrated to yield the title compound (9.70 g, 94.25percent). MS (ESI) mass calcd. for Ci3H2i NO5, 271 .32; 1H NMR (400 MHz, CDCI3) 4.24 (q, J = 7.1 , 2H), 4.03 (s br, 2H), 3.49 (t, J = 5.6, 2H), 2.32 (m, 3H), 1 .47 (s, 9H), 1 .31 (t, J = 7.1 , 3H)., 39514-19-7

39514-19-7 Ethyl 1-benzyl-3-oxopiperidine-4-carboxylate 419705, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; JANSSEN PHARMACEUTICA NV; BRANSTETTER, Bryan, James; LETAVIC, Michael, A.; LY, Kiev, S.; RUDOLPH, Dale, A.; SAVALL, Brad, M.; SHAH, Chandravadan, R.; SHIREMAN, Brock, T.; WO2011/50202; (2011); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem

24666-55-5, Benzyl (2,6-dioxopiperidin-3-yl)carbamate is a piperidines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

3-(Benzyloxycarbonylamino)piperidine-2,6-dione (100 gm), methanol (1000 ml) and 10% palladium carbon (15 gm) were added and then applied hydrogen pressure at room temperature. The reaction mass was maintained for 2 hours and filtered over on celyte bed. The solvent was distilled off under vacuum from the filtrate thus obtained to obtain a crystalline solid. To the crystalline solid was added a mixture of dimethylformamide (400 ml), triethylamine (100 ml) and 2-(bromomethyl)-3-nirobenzoic acid methyl ester (100 gm) as obtained in example 1. The reaction mass was stirred for 6 hours at room temperature, filtered and then dried to obtain a solid. The solid obtained was dissolved in methanol (250 ml) and stirred for 1 hour at room temperature. The solid obtained was collected by filtration and dried to obtain 77 gm of 3-(4-nitro-l-oxo-l,3- dihydro-2H-isoindol-2-yl)piperidine-2,6-dione, 24666-55-5

24666-55-5 Benzyl (2,6-dioxopiperidin-3-yl)carbamate 2735493, apiperidines compound, is more and more widely used in various fields.

Reference：
Patent; HETERO RESEARCH FOUNDATION; PARTHASARADHI REDDY, Bandi; RATHNAKAR REDDY, Kura; MURALIDHARA REDDY, Dasari; RAMAKRISHNA REDDY, Matta; VAMSI KRISHNA, Bandi; WO2013/5229; (2013); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem