Diisopropylethylamine → N-(4-(4-(3-(3-(tert-Butyl)-1-(p-tolyl)-1H-pyrazol-5-yl)ureido)-1-naphthoyl)pyridin-2-yl)-2-(2-methoxyethoxy)acetamide

HRID 571116

Reaction equation

[NH2:1][C:2]1[CH:3]=[C:4]([CH:37]=[CH:38][N:39]=1)[C:5]([C:7]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]([NH:17][C:18]([NH:20][C:21]2[N:25]([C:26]3[CH:31]=[CH:30][C:29]([CH3:32])=[CH:28][CH:27]=3)[N:24]=[C:23]([C:33]([CH3:36])([CH3:35])[CH3:34])[CH:22]=2)=[O:19])=[CH:9][CH:8]=1)=[O:6].CCN(C(C)C)C(C)C.[CH3:49][O:50][CH2:51][CH2:52][O:53][CH2:54][C:55](Cl)=[O:56]>C1COCC1>[C:33]([C:23]1[CH:22]=[C:21]([NH:20][C:18](=[O:19])[NH:17][C:10]2[C:11]3[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:7]([C:5]([C:4]3[CH:37]=[CH:38][N:39]=[C:2]([NH:1][C:55](=[O:56])[CH2:54][O:53][CH2:52][CH2:51][O:50][CH3:49])[CH:3]=3)=[O:6])=[CH:8][CH:9]=2)[N:25]([C:26]2[CH:27]=[CH:28][C:29]([CH3:32])=[CH:30][CH:31]=2)[N:24]=1)([CH3:34])([CH3:35])[CH3:36]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 1-(4-(2-aminoisonicotinoyl)naphthalen-1-yl)-3-(3-(tert-butyl)-1-(p-tolyl)-1H-pyrazol-5-yl)urea (38.0 mg, 0.073 mmol) and DIPEA (64 μL, 0.37 mmol) in dry THF (4.0 mL) under N2 at 0° C. was added 2-(2-methoxyethoxy)acetyl chloride (45.0 mg, 0.29 mmol). The reaction mixture was maintained at 0° C. for 30 min and was then warmed to RT for 1.5 hr. The reaction was quenched by the addition of a solution of NH3 (1% in MeOH, 3.0 mL) and after a further 45 min at RT was evaporated in vacuo. The residue was purified by SCX capture and release followed by flash column chromatography (SiO2, 12 g, [5% MeOH in EtOAc] in isohexane, 0-60%, gradient elution) to afford the title compound, Example 22, as a yellow solid (21 mg, 44%); Rt 2.67 min (Method 2); m/z 635 (M+H)+ (ES+); 1H NMR (400 MHz, DMSO-d6) δ: 1.29 (9H, s), 2.39 (3H, s), 3.29 (3H, s), 3.50 (2H, m), 3.66 (2H, m), 4.14 (2H, s), 6.45 (1H, s), 7.35-7.37 (3H, overlapping m), 7.46 (2H, d), 7.67-7.73 (3H, overlapping m), 8.20 (2H, m), 8.37 (1H, s), 8.49 (1H, m), 8.54 (1H, d), 9.03 (1H, s), 9.47 (1H, s), 10.24 (1H, s).

Workup

temperaturewas then warmed to RT for 1.5 hr
customThe reaction was quenched by the addition of a solution of NH3 (1% in MeOH, 3.0 mL) and after a further 45 min at RT
customwas evaporated in vacuo
customThe residue was purified by SCX capture and release
washfollowed by flash column chromatography (SiO2, 12 g, [5% MeOH in EtOAc] in isohexane, 0-60%, gradient elution)

Sources & evidence

ORD record: ord-30cf090e4d8449c892f57bcab8f4da71
Source dataset: uspto-grants-2015_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09024041B2

Linked notes

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