Sodium Carbonate → 1-isopropyl-3-(pyrimidin-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

HRID 237962Notes

Reaction equation

[N:1]1[CH:6]=[C:5](B(O)O)[CH:4]=[N:3][CH:2]=1.I[C:11]1[C:19]2[C:14](=[N:15][CH:16]=[N:17][C:18]=2[NH2:20])[N:13]([CH:21]([CH3:23])[CH3:22])[N:12]=1.C([O-])([O-])=O.[Na+].[Na+]>CCO.COCCOC.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>[CH:21]([N:13]1[C:14]2=[N:15][CH:16]=[N:17][C:18]([NH2:20])=[C:19]2[C:11]([C:5]2[CH:6]=[N:1][CH:2]=[N:3][CH:4]=2)=[N:12]1)([CH3:23])[CH3:22]

Participants

Conditions

Temperature: 80 °C

Procedure

A solution of 5-Pyrimidinylboronic acid (15 mg, 0.14 mmol) in EtOH (3.3 mL) was added to a solution of 3-iodo-1-isopropyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (40 mg, 0.13 mmol) in DME (12 mL). Pd(PPh3)4 (15 mg, 0.015 mmol) and saturated Na2CO3 (1.9 mL) were added and the reaction was heated to 80° C. under an argon atmosphere overnight. After cooling, the reaction was extracted with saturated NaCl and CH2Cl2. Organic phases were combined, concentrated in vacuo and purified by RP-HPLC (MeCN:H2O) to yield BA53. ESI-MS (M+H)+ m/z calcd 256.1, found 256.1.

Workup

temperatureAfter cooling
extractionthe reaction was extracted with saturated NaCl and CH2Cl2
concentrationconcentrated in vacuo
custompurified by RP-HPLC (MeCN:H2O)
customto yield BA53

Sources & evidence

ORD record: ord-6461478be96e421f91da492bed40a786
Source dataset: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08642604B2

Reaction notes

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