5-tert-Butyl-1,2-oxazole-3-carboxylic acid → (S)-5-tert-butyl-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)isoxazole-3-carboxamide

HRID 872745

Reaction equation

HRID 872745 reaction equation
[NH2:1][C@@H:2]([CH3:18])[CH2:3][N:4]1[CH:8]=[CH:7][C:6]([C:9]2[CH:16]=[CH:15][C:12]([C:13]#[N:14])=[C:11]([Cl:17])[CH:10]=2)=[N:5]1.[C:19]([C:23]1[O:27][N:26]=[C:25]([C:28](O)=[O:29])[CH:24]=1)([CH3:22])([CH3:21])[CH3:20]>>[C:19]([C:23]1[O:27][N:26]=[C:25]([C:28]([NH:1][C@@H:2]([CH3:18])[CH2:3][N:4]2[CH:8]=[CH:7][C:6]([C:9]3[CH:16]=[CH:15][C:12]([C:13]#[N:14])=[C:11]([Cl:17])[CH:10]=3)=[N:5]2)=[O:29])[CH:24]=1)([CH3:22])([CH3:20])[CH3:21]

Participants

3

Reactant 2

HCID 173896645-tert-Butyl-1,2-oxazole-3-carboxylic acidHCID 67170882(S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile

Product 1

HCID 70655808(S)-5-tert-butyl-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)isoxazole-3-carboxamideYield 53.6%

Procedure

(S)-5-tert-butyl-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)isoxazole-3-carboxamide was prepared using the method of Example 34(d) starting from (S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile (200 mg, 0.69 mmol) and 5-tert-butylisoxazole-3-carboxylic acid (132 mg, 0.782 mmol). The product was purified by Flash-chromatography (reverse phase). Yield 53.6%. 1H-NMR (400 MHz; MeOD): δ 1.26 (d, 3H), 1.35 (s, 9H), 4.26-4.45 (m, 2H), 4.51-4.63 (m, 1H), 6.34 (s, 1H), 6.77 (d, 1H), 7.70 (d, 1H), 7.77 (dd, 1H), 7.87 (dd, 1H), 8.09 (dd, 1H).

Workup

  1. customThe product was purified by Flash-chromatography (reverse phase)

Sources & evidence

ORD record
ord-40bdaba3e821435e9707207ebd5788e3
Source dataset
uspto-grants-2015_03
Patent number
US08975254B2

Linked notes

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