Carbonate Ion → (5R)-4-(1H-indol-5-yloxy)-6-methoxy-7-(2-oxopyrrolidin-5-ylmethoxy)quinazoline

HRID 454318Notes

Reaction equation

[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([O:12][C:13]3[CH:14]=[C:15]4[C:19](=[CH:20][CH:21]=3)[NH:18][CH:17]=[CH:16]4)=[N:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[O:22][CH3:23].C(=O)([O-])[O-].C1(C)C=CC(S([CH2:37][C@@H:38]2[NH:42][C:41](=[O:43])[CH2:40][CH2:39]2)(=O)=O)=CC=1>CN(C=O)C>[NH:18]1[C:19]2[C:15](=[CH:14][C:13]([O:12][C:6]3[C:5]4[C:10](=[CH:11][C:2]([O:1][CH2:37][C@@H:38]5[NH:42][C:41](=[O:43])[CH2:40][CH2:39]5)=[C:3]([O:22][CH3:23])[CH:4]=4)[N:9]=[CH:8][N:7]=3)=[CH:21][CH:20]=2)[CH:16]=[CH:17]1

Participants

Conditions

Temperature: 90 °C

Procedure

To a solution of 7-hydroxy-4-(1H-indol-5-yloxy)-6-methoxyquinazoline (800 mg, 2.6 mmol), (prepared as described for the starting material in Example 107), in DMF (20 ml) was added powdered potassuim carbonate (1.08 g, 7.8 mmol) and (5R)-5-(p-toluenesulphonylmethyl)-2-pyrrolidinone (1.13 g, 4.2 mmol). The reaction was then heated at 90° C. for 4 hours. The inorganic material was filtered off and the DMF removed by evaporation. The residue was then purified by chromatography eluting from methylene chloride to 12% methanol/88% methylene chloride (+1% ammonium hydroxide). A small portion was recolumned using the same gradient. The product was evaporated, triturated with ether and filtered to give (5R)-4-(1H-indol-5-yloxy)-6-methoxy-7-(2-oxopyrrolidin-5-ylmethoxy)quinazoline (70 mg, 6.5%) as a white solid.

Workup

additionwas added
filtrationThe inorganic material was filtered off
customthe DMF removed by evaporation
customThe residue was then purified by chromatography
washeluting from methylene chloride to 12% methanol/88% methylene chloride (+1% ammonium hydroxide)
customThe product was evaporated
customtriturated with ether
filtrationfiltered

Sources & evidence

ORD record: ord-c15b53b25d4c441b81d75b8cb74bd7d1
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08492560B2

Reaction notes

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