Water → 1-(5-Tert-butylisoxazol-3-yl)-3-(5-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluorophenyl)urea

HRID 871769Notes

Reaction equation

[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[C:18]([OH:20])[CH:17]=[CH:16][C:15]=2[F:21])=[O:12])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].Cl[C:23]1[C:32]2[C:27](=[CH:28][C:29]([O:35][CH3:36])=[C:30]([O:33][CH3:34])[CH:31]=2)[N:26]=[CH:25][N:24]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[C:18]([O:20][C:23]3[C:32]4[C:27](=[CH:28][C:29]([O:35][CH3:36])=[C:30]([O:33][CH3:34])[CH:31]=4)[N:26]=[CH:25][N:24]=3)[CH:17]=[CH:16][C:15]=2[F:21])=[O:12])[CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

Conditions

Temperature: 35 °C

Procedure

To a stirred solution of 1-(5-tert-butylisoxazol-3-yl)-3-(2-fluoro-5-hydroxyphenyl)urea (200 mg, 0.68 mmol) and 4-chloro-6,7-dimethoxyquinazoline (153 mg, 0.68 mmol) in DMF (4 mL) at rt, was added potassium carbonate (188 mg, 1.36 mmol). The reaction mixture was stirred at 35° C. for 15 h. The mixture was poured into water, and the resulting brown solid was filtrated, washed with water, and dried to afford the crude product. Purification via reverse-phase preparative HPLC afforded 1-(5-tert-butylisoxazol-3-yl)-3-(5-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluorophenyl)urea (25 mg, 8%) as a solid. 1H NMR (400 MHz, DMSO-d6) δ 9.86 (brs, 1H), 8.85 (brs, 1H), 8.57 (s, 1H), 8.16 (m, 1H), 7.55 (s, 1H), 7.40-7.44 (m, 2H), 7.16 (m, 1H), 6.50 (s, 1H), 3.99 (s, 3H), 3.97 (s, 3H), 1.30 (s, 9H); LC-MS (ESI) m/z 482 (M+H)+.

Workup

filtrationthe resulting brown solid was filtrated
washwashed with water
customdried
customto afford the crude product
customPurification via reverse-phase preparative HPLC

Sources & evidence

ORD record: ord-2f1791f60e694eb5b73d88989be4ba73
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08969587B2

Reaction notes

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