Cesium carbonate → HCID 66876492, compound

HRID 631342Notes

Reaction equation

[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([OH:20])[CH:15]=2)=[O:12])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].Cl[C:22]1[C:31]2[C:26](=[CH:27][CH:28]=[C:29]([I:32])[CH:30]=2)[N:25]=[CH:24][N:23]=1.C([O-])([O-])=O.[Cs+].[Cs+]>C(O)(C)C>[C:1]([C:5]1[O:9][N:8]=[C:7]([NH:10][C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([O:20][C:22]3[C:31]4[C:26](=[CH:27][CH:28]=[C:29]([I:32])[CH:30]=4)[N:25]=[CH:24][N:23]=3)[CH:15]=2)=[O:12])[CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of 1-(5-tert-butylisoxazol-3-yl)-3-(3-hydroxyphenyl)urea (0.413 g, 1.5 mmol) from Example 1A, 4-chloro-6-iodoquinazoline (0.436 g, 1.5 mmol), and Cs2CO3 (0.489 g, 1.5 mmol) in isopropanol (10 mL) was heated at 50° C. for 2 hours. It was quenched with water and extracted with CH2Cl2. Extracts were dried over MgSO4 and concentrated under reduced pressure. It was purified by silica gel chromatography with EtOAc/hexane as eluant to afford 1-(5-tert-butylisoxazol-3-yl)-3-[3-(6-iodoquinazolin-4-yloxy)phenyl]urea as solid (0.551 g, 69%). 1H NMR (300 MHz, DMSO-d6) δ 9.66 (s, 1H), 9.08 (s, 1H), 8.84 (s, 1H), 8.78 (m, 1H), 8.40 (dd, 1H), 7.87 (d, 1H), 7.67 (d, 1H), 7.49 (t, 1H), 7.38 (d, 1H), 7.09 (d, 1H), 6.55 (s, 1H), 1.35 (s, 9H); LC-MS (ESI) m/z 530 (M+H)+.

Workup

customIt was quenched with water
extractionextracted with CH2Cl2
dry with materialExtracts were dried over MgSO4
concentrationconcentrated under reduced pressure
customIt was purified by silica gel chromatography with EtOAc/hexane as eluant

Sources & evidence

ORD record: ord-40fdbac99f5949e59dd95c53a0ea829c
Source dataset: uspto-grants-2016_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09320739B2

Reaction notes

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