Isopropylamine → (2R)-7-(2-hydroxy-3-(isopropylamino)propoxy)4-(indol-5-yloxy)-6-methoxyquinazoline

HRID 1791819Notes

Reaction equation

[NH:1]1[C:9]2[C:4](=[CH:5][C:6]([O:10][C:11]3[C:20]4[C:15](=[CH:16][C:17]([O:23][CH2:24][C@H:25]5[CH2:27][O:26]5)=[C:18]([O:21][CH3:22])[CH:19]=4)[N:14]=[CH:13][N:12]=3)=[CH:7][CH:8]=2)[CH:3]=[CH:2]1.[CH:28]([NH2:31])([CH3:30])[CH3:29]>C1COCC1>[OH:26][C@H:25]([CH2:27][NH:31][CH:28]([CH3:30])[CH3:29])[CH2:24][O:23][C:17]1[CH:16]=[C:15]2[C:20]([C:11]([O:10][C:6]3[CH:5]=[C:4]4[C:9](=[CH:8][CH:7]=3)[NH:1][CH:2]=[CH:3]4)=[N:12][CH:13]=[N:14]2)=[CH:19][C:18]=1[O:21][CH3:22]

Participants

Conditions

Temperature: 75 °C

Procedure

A mixture of (2R)-4-(indol-5-yloxy)-6-methoxy-7-(oxiran-2-ylmethoxy)quinazoline (100 mg, 0.28 mmol), (prepared as described for the starting material in Example 292), and isopropylamine (1.0 ml) in THF (10 ml) was stirred at 75° C. for 18 hours under an atmosphere of nitrogen and then allowed to cool to ambient temperature. The mixture was filtered and the filtrate evaporated in vacuo. The residue was purified by silica gel chromatography, gradient elution with dichloromethane/methanolic ammonia (7M) (100/0 to 90/10) to give (2R)-7-(2-hydroxy-3-(isopropylamino)propoxy)4-(indol-5-yloxy)-6-methoxyquinazoline (82 mg, 68%).

Workup

custom(prepared
temperatureto cool to ambient temperature
filtrationThe mixture was filtered
customthe filtrate evaporated in vacuo
customThe residue was purified by silica gel chromatography, gradient elution with dichloromethane/methanolic ammonia (7M) (100/0 to 90/10)

Sources & evidence

ORD record: ord-f68e0ecf50514aa08ad37e4da24a1fc8
Source dataset: uspto-grants-2006_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07074800B1

Reaction notes

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