Potassium Carbonate → 4-({2-[1-(2-fluorobenzyl)-1H-indazol-3-yl]-5-hydroxypyrimidin-4-yl}amino)pyridine-3-carbonitrile

HRID 1776430Notes

Reaction equation

[F:1][C:2]1[CH:26]=[CH:25][CH:24]=[CH:23][C:3]=1[CH2:4][N:5]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]([C:14]2[N:19]=[C:18]([NH2:20])[C:17]([O:21]C)=[CH:16][N:15]=2)=[N:6]1.C(=O)([O-])[O-].[K+].[K+].Br[C:34]1[CH:39]=[CH:38][N:37]=[CH:36][C:35]=1[C:40]#[N:41]>CN(C)C=O>[F:1][C:2]1[CH:26]=[CH:25][CH:24]=[CH:23][C:3]=1[CH2:4][N:5]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]([C:14]2[N:19]=[C:18]([NH:20][C:34]3[CH:39]=[CH:38][N:37]=[CH:36][C:35]=3[C:40]#[N:41])[C:17]([OH:21])=[CH:16][N:15]=2)=[N:6]1

Participants

Conditions

Temperature: 100 °C

Procedure

50 mg of 4-amino-2-[1-(2-fluorobenzyl)-1H-indazol-3-yl]pyrimidin-5-ol (1-11-1, 0.149 mmol, 1. eq.) were dissolved in 3 ml of N,N-dimethylformamide. 103 mg of potassium carbonate (0.746 mmol, 5 eq.) and 32.8 mg of 4-bromopyridine-3-carbonitrile (0.179 mmol, 1.2 eq.) were added. The reaction mixture was stirred at 100° C. bath temperature for 18 hours. After cooling at room temperature the mixture was filtered off and washed with dichloromethane. The filtrate was concentrated in vacuo. The residue was purified by preparative HPLC and preparative TLC to yield 4.21 mg (0.01 mmol, 6.1%) of the analytically pure target compound.

Workup

temperatureAfter cooling at room temperature the mixture
filtrationwas filtered off
washwashed with dichloromethane
concentrationThe filtrate was concentrated in vacuo
customThe residue was purified by preparative HPLC and preparative TLC
customto yield 4.21 mg (0.01 mmol, 6.1%) of the analytically pure target compound

Sources & evidence

ORD record: ord-720afc656ec243a5941f741e1c17d91a
Source dataset: uspto-grants-2016_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09265763B2

Reaction notes

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