Sodium Carbonate → (R)-tert-butyl 3-(4-amino-3-(4-(2,3-difluorophenoxy)-2-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate

HRID 409146Notes

Reaction equation

HRID 409146 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@@H:12]3[CH2:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:13]3)[N:9]=[C:10](I)[C:3]=12.[F:25][C:26]1[C:48]([F:49])=[CH:47][CH:46]=[CH:45][C:27]=1[O:28][C:29]1[CH:34]=[CH:33][C:32](B2OC(C)(C)C(C)(C)O2)=[C:31]([F:44])[CH:30]=1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@@H:12]3[CH2:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:13]3)[N:9]=[C:10]([C:32]3[CH:33]=[CH:34][C:29]([O:28][C:27]4[CH:45]=[CH:46][CH:47]=[C:48]([F:49])[C:26]=4[F:25])=[CH:30][C:31]=3[F:44])[C:3]=12

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 58441419(R)-tert-Butyl 3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylateHCID 867145272-(4-(2,3-Difluorophenoxy)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Product 1

HCID 86714526(R)-tert-butyl 3-(4-amino-3-(4-(2,3-difluorophenoxy)-2-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylateYield 51.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 218864351,4-Dioxane--water (1/1)Solvent

Procedure

A solution of (R)-tert-butyl 3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate (2.8 g, 6.16 mmol, 1.0 eq), 2-(4-(2,3-difluorophenoxy)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.7 g, 6.16 mmol, 1.0 eq), Pd(PPh3)4 (0.28 g, 0.08 mmol, 0.07 eq) and Na2CO3 (1.7 g, 15.4 mmol, 2.5 eq) in dioxane/H2O (40/10 mL) was stirred at 90° C. overnight. The reaction mixture was concentrated and purified by Pre-TLC to afford (R)-tert-butyl 3-(4-amino-3-(4-(2,3-difluorophenoxy)-2-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate (1.7 g, 51.1% yield).

Workup

  1. concentrationThe reaction mixture was concentrated
  2. custompurified by Pre-TLC

Sources & evidence

ORD record
ord-2c7b9af10b924253aa3aa6f2c29509ff
Source dataset
uspto-grants-2014_06
Patent number
US08759358B1

Reaction notes

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