Trifluoroacetic acid → HCID 59682929, compound

Participants

Reaction Steps

7-{[1-(tert-Butoxycarbonyl)-piperidin-4-yl]oxy}-6-methoxy-4-[(2-methyl-1H-indol-6-yl)oxy]quinazoline (1 g) was dissolved in dichloromethane (5 ml) and cooled in an ice bath. TFA (2.5 ml) was added and the reaction mixture stirred at this temperature for 35 minutes. The volatiles were removed by filtration and the residue taken up into ice cold water. The pH was adjusted to 12 with sodium hydroxide 2N and extracted twice with dichloromethane. The combined extracts were washed in turn with water and brine and dried over magnesium sulphate and the solvent evaporated under vacuum to give 6-methoxy-4-[(2-methyl-1H-indol-6-yl)oxy]-7-[(piperidin-4-yl)oxy]quinazoline (0.765 g) as a solid foam.

Provenance & Evidence