Hydrochloric Acid → HCID 66819686, compound

Reaction equation

C(OC(=O)[NH:7][CH2:8][CH2:9][O:10][C:11]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14](=[O:21])[NH:13][C:12]=1[C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[CH:23]=1)(C)(C)C.[ClH:31]>CO.O1CCOCC1>[ClH:31].[NH2:7][CH2:8][CH2:9][O:10][C:11]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14](=[O:21])[NH:13][C:12]=1[C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[CH:23]=1

Participants

Procedure

To a solution of 3.2 g (7.8 mmol) of {2-[3-(3-Methoxy-phenyl)-1-oxo-1,2-dihydro-isoquinolin-4-yloxy]-ethyl}-carbamic acid tert-butyl ester in methanol (10 mL), 4M hydrochloric acid in dioxane (10 mL) was added and the mixture was stirred for 4 hours at room temperature under argon atmosphere. Solvent was evaporated to dryness and the solid residue was treated with methanol and then diethyl ether until precipitation of the hydrochloride salt occurred. The product was collected by filtration, washed with diethyl ether, affording 2.62 g of the title compound (97%) as a white solid.