Methanol → HCID 73335332, compound

HRID 710619Notes

Reaction equation

CO.[CH3:3][N:4]([CH:6]=O)C.C([O-])([O-])=O.[K+].[K+].Cl[CH2:15][C:16]([N:18]1[CH2:23][CH2:22][CH2:21][C:20]2[N:24]([C:27]3[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=3)[N:25]=[CH:26][C:19]1=2)=[O:17]>C1COCC1.CCOC(C)=O>[F:33][C:30]1[CH:31]=[CH:32][C:27]([N:24]2[C:20]3[CH2:21][CH2:22][CH2:23][N:18]([C:16](=[O:17])[CH2:15][N:25]4[C:3]5=[N:4][CH:6]=[CH:23][CH:22]=[C:21]5[CH:20]=[N:24]4)[C:19]=3[CH:26]=[N:25]2)=[CH:28][CH:29]=1

Participants

Conditions

Temperature: 75 °C

Procedure

The carbinol obtained above (69 mg, 0.4 mmol) was diluted in 1.2 mL of THF and 500 μL of DMF and treated with K2CO3 (111 mg, 0.8 mmol) and 2-chloro-1-(1-(4-fluorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-b]pyridin-4(5H)-yl)ethanone (118 mg, 0.4 mmol). The slurry was heated to 75° C. The reaction slurry was diluted with EtOAc and washed with brine, dried on MgSO4, filtered, and concentrated. The residue was purified by reverse phase HPLC (C18 column, acetonitrile-H2O with 0.1% TFA as eluent) to provide 69 mg of the desired product (43%) as a white solid. 1H NMR (400 MHz, CDCl3, mixture of rotamers) δ 8.37 (s, 0.8H), 7.63 (s, 0.2H), 7.42-7.46 (m, 2H), 7.13-7.19 (m, 2H), 5.14 (s, 0.4H), 5.03 (s, 1.6H), 3.90 (m, 0.4H), 3.87 (m, 1.6H), 2.86 (m, 2H), 2.28 (s, 2.4H), 2.25 (s, 0.6H), 2.05-2.13 (m, 2H), 1.62 (s, 6H); MS: (ES) m/z calculated for C21H24ClFN5O2 [M+H]+ 432.2, found 432.1.

Workup

washwashed with brine
customdried on MgSO4
filtrationfiltered
concentrationconcentrated
customThe residue was purified by reverse phase HPLC (C18 column, acetonitrile-H2O with 0.1% TFA as eluent)

Sources & evidence

ORD record: ord-a0e8a73a92664b80897fcc5eb494f41d
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09181241B2

Reaction notes

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