Potassium Phosphate, Tribasic → US10251893, Cpd 194

HRID 1036264Notes

Reaction equation

[C:1]([N:4]1[CH2:9][CH2:8][N:7]([C:10]2[CH:11]=[CH:12][C:13]([NH:16][C:17](=[O:27])[CH2:18][C:19]3[CH:20]=[N:21][C:22](Cl)=[C:23]([F:25])[CH:24]=3)=[N:14][CH:15]=2)[CH2:6][CH2:5]1)(=[O:3])[CH3:2].[F:28][C:29]1[CH:34]=[C:33](B(O)O)[CH:32]=[CH:31][N:30]=1.COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>CC(O)CC.CC([O-])=O.CC([O-])=O.[Pd+2].CS(C)=O>[C:1]([N:4]1[CH2:9][CH2:8][N:7]([C:10]2[CH:11]=[CH:12][C:13]([NH:16][C:17](=[O:27])[CH2:18][C:19]3[CH:24]=[C:23]([F:25])[C:22]([C:33]4[CH:32]=[CH:31][N:30]=[C:29]([F:28])[CH:34]=4)=[N:21][CH:20]=3)=[N:14][CH:15]=2)[CH2:6][CH2:5]1)(=[O:3])[CH3:2]

Participants

Conditions

Temperature: 100 °C

Procedure

To a reaction vial was added N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-fluoropyridin-3-yl)acetamide 190-6 (66 mg, 0.17 mmol), 2-fluoropyridin-4-ylboronic acid 193-1 (35 mg, 0.25 mmol), Pd(OAc)2 (2 mg, 0.009 mmol), S-Phos (7 mg, 0.017 mmol) and K3PO4 (108 mg, 0.51 mmol) in 2-butanol (0.3 mL). The reaction was heated to 100° C. and stirred for 2 hours. The reaction was cooled down to room temperature and then diluted to DMSO. The reaction mixture was filtered and the filtrate was purified by reverse-phase HPLC to give N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(2′,3-difluoro-2,4′-bipyridin-5-yl)acetamide 194. MS m/z 453.1 (M+1).

Workup

temperatureThe reaction was cooled down to room temperature
filtrationThe reaction mixture was filtered
customthe filtrate was purified by reverse-phase HPLC

Sources & evidence

ORD record: ord-633a99aa6c834b38aba6fc20f79c01b9
Source dataset: uspto-grants-2013_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08546396B2

Reaction notes

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