Hydrochloric Acid → 9-Carboxy-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one

HRID 849638Notes

Reaction equation

[C:1]([CH:6]1[CH2:15][CH2:14][C:13]2[NH:12][C:11](=[O:16])[N:10]3[CH:17]=[C:18]([C:20]4[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=4[F:26])[N:19]=[C:9]3[C:8]=2[CH2:7]1)([O:3]CC)=[O:2].Cl>[OH-].[Na+]>[C:1]([CH:6]1[CH2:15][CH2:14][C:13]2[NH:12][C:11](=[O:16])[N:10]3[CH:17]=[C:18]([C:20]4[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=4[F:26])[N:19]=[C:9]3[C:8]=2[CH2:7]1)([OH:3])=[O:2]

Participants

Conditions

Temperature: 60 °C

Procedure

To 20 mL of 1N NaOH was added 9-Carboethoxy-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one (400 mg). After the solid dissolved, the mixture was stirred for 40 minutes at 60° C., cooled and the pH adjusted to 3 with concentrated HCl. The solid was collected and dried to yield 9-Carboxy-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one (Compound 17), m.p.>325° C.

Workup

dissolutionAfter the solid dissolved
temperaturecooled
customThe solid was collected
customdried

Sources & evidence

ORD record: ord-42ba6500840449378855590397743cb2
Source dataset: uspto-grants-2000_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06013799

Reaction notes

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