4-Fluorobenzoic Acid → 4-Fluoro-N-[4-(2-furyl)-5-(tetrahydropyran-4-ylcarbonyl)thiazol-2-yl]benzamide

HRID 337496Notes

Reaction equation

[O:1]1[CH2:6][CH2:5][CH:4]([C:7]([C:9]2[S:13][C:12]([NH2:14])=[N:11][C:10]=2[C:15]2[O:16][CH:17]=[CH:18][CH:19]=2)=[O:8])[CH2:3][CH2:2]1.[F:20][C:21]1[CH:29]=[CH:28][C:24]([C:25](O)=[O:26])=[CH:23][CH:22]=1.CCN=C=NCCCN(C)C.Cl.O.ON1C2C=CC=CC=2N=N1.C(=O)([O-])O.[Na+]>CN(C=O)C.O>[F:20][C:21]1[CH:29]=[CH:28][C:24]([C:25]([NH:14][C:12]2[S:13][C:9]([C:7]([CH:4]3[CH2:5][CH2:6][O:1][CH2:2][CH2:3]3)=[O:8])=[C:10]([C:15]3[O:16][CH:17]=[CH:18][CH:19]=3)[N:11]=2)=[O:26])=[CH:23][CH:22]=1

Participants

Conditions

Temperature: 80 °C

Procedure

Compound 454 (834 mg, 3.00 mmol) was dissolved in DMF (12 mL), and 4-fluorobenzoic acid (3.36 g, 24.0 mmol), EDC hydrochloride (4.12 g, 24.0 mmol) and 1-hydroxybenzotriazole monohydrate (3.68 g, 24.0 mmol) were added thereto, followed by stirring at 80° C. for 2 hours. The reaction mixture was poured into a mixture of a saturated aqueous solution of sodium hydrogencarbonate (30 mL) and water (30 mL), and the precipitated solid was collected by filtration. The resulting solid was purified through silica gel column chromatography (chloroform:methanol=19:1), followed by recrystallizing from ethanol to afford the entitled Compound 468 (270 mg, 23%) as a white solid.

Workup

filtrationthe precipitated solid was collected by filtration
customThe resulting solid was purified through silica gel column chromatography (chloroform:methanol=19:1)
customby recrystallizing from ethanol

Sources & evidence

ORD record: ord-fea6a924c9f64d19854f112c812b5662
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08889718B2

Reaction notes

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