Triethylamine → HCID 67298215, compound

Participants

Reaction Steps

A 100 mL round bottom flask was charged with 4,6-dichloro-2-(pyridin-3-yl)quinazoline (synthesized as described in Scheme 1 and 4, substituting 5-chloro-2-nitrobenzoic acid for 2-nitro-5-propoxy-benzoic acid) (150 mg, 0.54 mmol) and 2-amino-N-(cyclopropylmethyl)benzamide) (310 mg, 1.63 mmol) and anhydrous i-PrOH (20 mL) was added and refluxed for 3 h. The reaction mixture was cooled to room temperature and Et3N (3 eq) was added. The solvent was removed in vacuo. To the crude product was added a water-methanol mixture (5:1, 50 mL), and then sonicated for 5 min. The solidified compound was collected by filtration, and the solid was recrystallized from hot methanol and washed with water. The product was dried at 50° C. to give 2-(6-chloro-2-(pyridin-3-yl)quinazolin-4-ylamino)-N-(cyclopropylmethyl)benzamide as a colorless cotton (220 mg, 94%). The structure was confirmed by NMR and elemental analysis. 1H NMR (Bruker 300 MHz, DMSO-d6) ppm 0.20-0.98 (m, 5H), 3.07-3.21 (m, 2H), 7.24-8.26 (m, 7H), 8.68-9.55 (m, 5H), 12.22 (s, 1H). CHN Calcd. C, 67.05; H, 4.69; N, 16.29. Found C, 67.15; H, 4.89; N, 16.25

Provenance & Evidence