Diisopropylethylamine → (R)-2-(4-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-nitropyridin-2-ylamino)-2-(4-fluorophenyl)ethanol

HRID 1092244Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([NH:8][C:9]2[CH:13]=[C:12]([CH:14]3[CH2:16][CH2:15]3)[NH:11][N:10]=2)[C:5]([N+:17]([O-:19])=[O:18])=[CH:4][N:3]=1.[NH2:20][C@H:21]([C:24]1[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=1)[CH2:22][OH:23].CCN(C(C)C)C(C)C>CCCCO>[CH:14]1([C:12]2[NH:11][N:10]=[C:9]([NH:8][C:6]3[C:5]([N+:17]([O-:19])=[O:18])=[CH:4][N:3]=[C:2]([NH:20][C@H:21]([C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)[CH2:22][OH:23])[CH:7]=3)[CH:13]=2)[CH2:16][CH2:15]1

Participants

Conditions

Temperature: 195 °C

Procedure

A mixture of 2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)-5-nitropyridin-4-amine (Method 90, 0.15 g, 0.54 mmol), (R)-2-amino-2-(4-fluorophenyl)ethanol (0.10 g, 0.67 mmol), and DIEA (0.12 ml, 0.67 mmol) in n-BuOH (5 ml) was heated in a sealed tube at 195° C. for 52 hours. The solvent was removed under reduced pressure and the residue was purified by column chromatography (EtOAc) to give the title compound as a yellow solid (0.15 g, 72%). 1H NMR (400 MHz) 12.38 (s, 1H), 9.59 (b, 1H), 8.83 (s, 1H), 8.16 (b, 11H), 7.37 (m, 2H), 7.13 (m, 2H), 6.75 (b, 1H), 5.92 (b, 11H), 5.25 (b, 1H), 4.98 (m, 1H), 3.61 (t, J=6.4 Hz, 2H), 1.92 (m, 1H), 0.97 (m, 2H), 0.72 (m, 2H). MS: Calcd.: 398; Found: [M+H]+ 399.

Workup

customThe solvent was removed under reduced pressure
customthe residue was purified by column chromatography (EtOAc)

Sources & evidence

ORD record: ord-2232f13a0aef4ecd8c08be9f4b2717b7
Source dataset: uspto-grants-2012_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08129403B2

Reaction notes

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