| | Identification | Back Directory |  | [Name] 
 tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate
 |  | [CAS] 
 877399-74-1
 |  | [Synonyms] 
 Crizotinib Impurity 2
 Crizotinib Impurity 1
 Crizotinib  intermediates 2
 InterMediate Ⅱ of Crizotinib
 Borate fragment of crizotinib
 1-Piperidinecarboxylic  acid,  4
 tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-
 1-(N-Boc-piperidine-4-ly)-boronicacid pinacol ester
 1-(1-Boc-4-piperidyl)pyrazole-4-boronic acid pinacol ester
 1-(4-N-Boc-piperidine)pyrazole-4-boronic acid pinacol ester
 1-(1-Boc-piperidin-4-yl)-pyrazole-4-boronic acid picol ester
 1-(1-Boc-piperidin-4-yl)-pyrazole-4-boronic acid pinacol ester
 tert-butyl 4-(4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H
 5-BroMo-3-[1-(2,6-dichloro-3-fluoro-phenyl)-ethoxy]-pyridin-2-ylaMine
 4-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl)piperidine-1-carb
 2-[1-(1-Boc-piperidin-4-yl)pyrazol-4-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
 4-(4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOL-1-YL)PIPERIDINE-1-CARBOXYLATE
 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]-, 1,1-dimethylethyl ester
 tert-butyl 4-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate
 tert-Butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-car
 tert-Butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carbox
 tert-Butyl 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]piperidine-1-carboxylate
 tert-butyl 4-(4-(4,4,5-trimethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate
 tert-Butyl 4-[4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxyla
 tert-butyl 4-(3-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrol-1-yl)piperidine-1-carboxylate
 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylatetert-Butyl
 tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate
 tert-Butyl 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]piperidine-1-carboxylate >
 1-Piperidinecarboxylic acid, 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazol-1-yl]-, 196%
 4-[4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL) -1H-PYRAZOL-1-YL]PIPERIDINE-1-CARBOXYLATE_ 877399-74-1
 tert-Butyl 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]piperidine-1-carboxylate
 4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-yl]-piperidine-1-carboxylic acid tert-butyl ester
 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]-1-piperidinecarboxylic acid 1,1-dimethylethyl ester
 tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate ISO 9001:2015 REACH
 1-Piperidinecarboxylic  acid,  4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]-,  1,1-dimethylethyl  ester
 4 - [4 - (4 - (4,4,5,5 31 - methyl - 1-2 oxygen mixed boron borane - 2 - base) - 1 h - pyrazole - 1 - base] piperidine - 1 - formic acid tert-butyl ester
 |  | [EINECS(EC#)] 
 800-459-4
 |  | [Molecular Formula] 
 C19H32BN3O4
 |  | [MDL Number] 
 MFCD11112131
 |  | [MOL File] 
 877399-74-1.mol
 |  | [Molecular Weight] 
 377.29
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 114.0 to 118.0 °C
 |  | [Boiling point ] 
 492.8±35.0 °C(Predicted)
 |  | [density ] 
 1.14±0.1 g/cm3(Predicted)
 |  | [storage temp. ] 
 Sealed in dry,Store in freezer, under -20°C
 |  | [form ] 
 powder to crystal
 |  | [pka] 
 2.89±0.19(Predicted)
 |  | [color ] 
 White to Almost white
 |  | [InChI] 
 InChI=1S/C19H32BN3O4/c1-17(2,3)25-16(24)22-10-8-15(9-11-22)23-13-14(12-21-23)20-26-18(4,5)19(6,7)27-20/h12-13,15H,8-11H2,1-7H3
 |  | [InChIKey] 
 QSQWENQPOSRWLP-UHFFFAOYSA-N
 |  | [SMILES] 
 N1(C(OC(C)(C)C)=O)CCC(N2C=C(B3OC(C)(C)C(C)(C)O3)C=N2)CC1
 | 
 | Hazard Information | Back Directory |  | [Synthesis] 
 Method 1:     To a solution of tert-butyl 4-(4-iodo-lH-pyrazol-l-yl)piperidine-l -carboxylate (1.00 g, 2.650 mmol) in DMSO (11 mL) were added 4,4,4,,4,,5,5,5,5-octamethyl-2,2**,-bi(l,3,2- dioxaborolane) (942.5 mg, 3.710 mmol) and CH3COOK (1.04 g, 10.60 mmol) sequentially. The mixture was degassed and charged with N2 several times, then Pd(PPh3)2Cl2 (93.0 mg, 0.130 mmol) was added. The resulted mixture was stirred at 80 °C for 2 hours, then cooled to rt, and filtered through a pad of celite. The filtrate was washed with brine (100 mL x 3), dried over anhydrous Na2S04, and concentrated in vacuo. The residue was purified by a silica gel column chromatography (PE/EtOAc (v/v) = 5/1) to give the title compound as a white solid (878.6 mg, 87.9percent). MS (ESI, pos. ion) m/z: 378.0 (M+l).
 ![tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate tert-Butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylate](/NewsImg/2023-11-06/6383488962058224615113223.png) 
 |  | [References] 
 [1] Patent: WO2014/193647,  2014,  A2. Location in patent: Paragraph 0185
 [2] Patent: CN104119331,  2018,  B. Location in patent: Paragraph 0382; 0390; 0391
 [3] Patent: WO2010/68292,  2010,  A1. Location in patent: Page/Page column 85-86
 [4] Patent: WO2014/89280,  2014,  A1. Location in patent: Page/Page column 50
 [5] Patent: CN103833753,  2017,  B. Location in patent: Paragraph 0352; 0358; 0359
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