Lithium Hydroxide → HCID 57899109, compound

HRID 76029Notes

Reaction equation

C[O:2][C:3](=[O:34])[CH2:4][CH:5]1[CH2:10][CH2:9][CH:8]([C:11]2[CH:16]=[CH:15][C:14]([C:17]3[CH:18]=[N:19][C:20]([NH:23][C:24]4[CH:25]=[N:26][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:28][CH:29]=4)=[N:21][CH:22]=3)=[CH:13][CH:12]=2)[CH2:7][CH2:6]1.[Li+].[OH-]>CN(C=O)C.Cl.O>[F:33][C:30]([F:31])([F:32])[C:27]1[N:26]=[CH:25][C:24]([NH:23][C:20]2[N:19]=[CH:18][C:17]([C:14]3[CH:13]=[CH:12][C:11]([CH:8]4[CH2:7][CH2:6][CH:5]([CH2:4][C:3]([OH:34])=[O:2])[CH2:10][CH2:9]4)=[CH:16][CH:15]=3)=[CH:22][N:21]=2)=[CH:29][CH:28]=1

Participants

Conditions

Temperature: 50 °C

Procedure

To a glass vial add 6-trifluoromethyl-pyridin-3-ylamine (35 mg, 0.217 mmol), {4-[4-(2-chloro-pyridin-5-yl)-phenyl]-cyclohexyl}-acetic acid methyl ester (50 mg, 0.145 mmol), Pd(OAc)2-(5 mg, 5% mol), X-Phos (7 mg, 10% mol), and Cs2CO3 (118 mg, 0.363 mmol). Flush with N2. Add tBuOH (0.25 mL), toluene (0.75 mL), and seal the tube. The reaction mixture is heated to 150° C. for 30 min by microwave irradiation. The reaction is diluted with EtOAc and filtered. The filtrate is concentrated and chromatographed on silica gel (25-50% EtOAc/Hexanes) to afford (4-{4-[2-(6-Trifluoromethyl-pyridin-3-ylamino)-pyrimidin-5-yl]-phenyl}-cyclohexyl)-acetic acid methyl ester as 90% pure. (4-{4-[2-(6-Trifluoromethyl-pyridin-3-ylamino)-pyrimidin-5-yl]-phenyl}-cyclohexyl)-acetic acid methyl ester (45 mg, 0.096 mmol) is taken up in DMF (1.5 mL) and 4 M LiOH (0.5 mL) and stirred at room temperature for 16 h. The reaction is heated to 50° C. for 12 h and then heated to 70° C. for 8 h. The reaction is diluted with 1 N HCl (2 mL) and H2O (2 mL). The precipitate is collected by filtration and purified by HPLC (Xterra C8 30×100 mm, 22-50% ACN/H2O+5 mM NH4OH) to afford (4-{4-[2-(6-Trifluoromethyl-pyridin-3-ylamino)-pyrimidin-5-yl]-phenyl}-cyclohexyl)-acetic acid as a white solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 1.05-1.18 (m, 2H) 1.43-1.56 (m, J=12.95, 12.66, 12.66, 3.16 Hz, 2H) 1.68-1.87 (m, 6H) 2.08 (d, J=6.57 Hz, 2H) 7.35 (d, J=8.34 Hz, 2H) 7.65 (d, J=8.34 Hz, 2H) 7.85 (d, J=8.59 Hz, 1H) 8.55 (dd, J=8.59, 2.02 Hz, 1H) 8.91 (s, 2H) 9.06 (d, J=2.27 Hz, 1H) 10.42 (s, 1H); (M+H)+457.0.

Workup

temperatureheated to 70° C. for 8 h
filtrationThe precipitate is collected by filtration
custompurified by HPLC (Xterra C8 30×100 mm, 22-50% ACN/H2O+5 mM NH4OH)

Sources & evidence

ORD record: ord-39ddd5b947cc49b3a8bd90b2773bf5db
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08835451B2

Reaction notes

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