Water → 4-{[3-(Trifluoromethyl)benzyl]amino}quinazoline-8-carboxamide

HRID 474392Notes

Reaction equation

[F:1][C:2]([F:25])([F:24])[C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][CH:23]=1)[CH2:6][NH:7][C:8]1[C:17]2[C:12](=[C:13]([C:18](O)=[O:19])[CH:14]=[CH:15][CH:16]=2)[N:11]=[CH:10][N:9]=1.C1N=C[N:28](C(N2C=NC=C2)=O)C=1.[NH4+].[Cl-].O>CS(C)=O>[F:25][C:2]([F:1])([F:24])[C:3]1[CH:4]=[C:5]([CH:21]=[CH:22][CH:23]=1)[CH2:6][NH:7][C:8]1[C:17]2[C:12](=[C:13]([C:18]([NH2:28])=[O:19])[CH:14]=[CH:15][CH:16]=2)[N:11]=[CH:10][N:9]=1

Participants

Conditions

Temperature: 50 °C

Procedure

To a solution of 4-{[3-(trifluoromethyl)benzyl]amino}quinazoline-8-carboxylic acid (68 mg, 0.19 mmol) in 2 mL of anhydrous DMSO, CDI (47 mg, 0.29 mmol, 1.5 equiv.) was added. The resulting mixture was stirred at 50° C. for 3 h. After cooling down to rt, NH4Cl (22 mg, 0.29 mmol, 1.5 equiv.) was added. The reaction mixture was stirred at rt overnight. The reaction mixture was poured into water. The white precipitate was collected as the desired product by filtration, followed by washed with water in 92% yield. 1HNMR (In DMSO): 4.90 (d, J=5.9 Hz, 2H), 7.56-7.69 (m, 4H), 7.74 (s, 1H), 7.86 (d, J=3.7 Hz, 1H), 8.51 (dd, J=1.5 and 8.0 Hz, 1H), 8.58 (dd, J=1.5 and 7.7 Hz, 1H), 8.59 (s, 1H), 9.24 (t, J=5.9 Hz, 1H), 10.33 (d, J=3.7 Hz, 1H). Mass: M+H+: 347.

Workup

temperatureAfter cooling down to rt
stirringThe reaction mixture was stirred at rt overnight
filtrationThe white precipitate was collected as the desired product by filtration
washby washed with water in 92% yield

Sources & evidence

ORD record: ord-895a9f1c4fcb437c9746651468bc0e57
Source dataset: uspto-grants-2014_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08637532B2

Reaction notes

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