Acetic Acid → 1-(5-{3-[(4-Cyclobutylpyrimidin-2-yl)amino]-5-methylphenyl}-1,3-thiazol-2-yl)cyclobutanol

HRID 1040138Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([CH:8]2[CH2:11][CH2:10][CH2:9]2)[CH:5]=[CH:4][N:3]=1.[NH2:12][C:13]1[CH:14]=[C:15]([C:20]2[S:24][C:23]([C:25]3([OH:29])[CH2:28][CH2:27][CH2:26]3)=[N:22][CH:21]=2)[CH:16]=[C:17]([CH3:19])[CH:18]=1.C(O)(=O)C>O1CCOCC1>[CH:8]1([C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH:12][C:13]3[CH:14]=[C:15]([C:20]4[S:24][C:23]([C:25]5([OH:29])[CH2:28][CH2:27][CH2:26]5)=[N:22][CH:21]=4)[CH:16]=[C:17]([CH3:19])[CH:18]=3)[N:7]=2)[CH2:11][CH2:10][CH2:9]1

Participants

Conditions

Temperature: 120 °C

Procedure

2-Chloro-4-cyclobutylpyrimidine (65 mg, 0.39 mmol), Intermediate 15 (100 mg, 0.39 mmol), and acetic acid (22 μL, 0.39 mmol) were combined in dioxane (1.9 mL) and the mixture was stirred at 120° C. for 3 h. The mixture was cooled to room temperature and directly purified by Combiflash chromatography on silica gel, eluting with ethyl acetate/isohexane to provide 66 mg (0.17 mmol, 44%) of 1-(5-{3-[(4-cyclobutylpyrimidin-2-yl)amino]-5-methylphenyl}-1,3-thiazol-2-yl)cyclobutanol. MS ESI: [M+H]+ m/z 393.2. 1H NMR (600 MHz, DMSO-d6) δ 9.56 (s, 1H), 8.33 (d, J=4.8, 1H), 8.12 (s, 1H), 7.95 (s, 1H), 7.48 (s, 1H), 7.05 (s, 1H), 6.68 (d, J=5.4, 1H), 6.46 (s, 1H), 3.53-3.50 (m, 1H), 2.52-2.46 (m, 2H), 2.33-2.22 (m, 9H), 1.99 (m, 1H), 1.87-1.83 (m, 3H). rhSYK activity=+++

Workup

temperatureThe mixture was cooled to room temperature
customdirectly purified by Combiflash chromatography on silica gel
washeluting with ethyl acetate/isohexane

Sources & evidence

ORD record: ord-32246bf22e384639afb319b6b5bc26dd
Source dataset: uspto-grants-2013_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08551984B2

Reaction notes

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