Hydrochloric Acid → 3-(3-hydroxy-phenyl)-5-methyl-2-[1-(9H-purin-6-ylamino)-ethyl]-3H-quinazolin-4-one

HRID 880638Notes

Reaction equation

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

Participants

Conditions

Temperature: 40 °C

Procedure

A 100-mL, one-neck, round bottomed flask equipped with a magnetic stirrer was charged with compound 126 (294 mg, 0.5 mmol), MeOH (15 mL) and 4N hydrochloric acid (15 mL), and the reaction mixture was heated for 5 h at 40° C. Evaporation of the methanol under reduced pressure followed by basification to pH 10 with 10% aqueous potassium carbonate gave a white precipitate. The precipitate was filtered, washed with water and dried under vacuum overnight at ambient temperature to afford compound 121 as a white solid. m/z=414 (M+H). The preparation of compound 121 is generally shown above as step D of Procedure C.

Workup

customA 100-mL, one-neck, round bottomed flask equipped with a magnetic stirrer
customEvaporation of the methanol under reduced pressure
customgave a white precipitate
filtrationThe precipitate was filtered
washwashed with water
customdried under vacuum overnight at ambient temperature

Sources & evidence

ORD record: ord-0951c504bac5460da8cdad347f5ea472
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08993583B2

Reaction notes

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