Lithium Hydroxide → HCID 178454023, compound

Participants

Reaction Conditions

Reaction Steps

The methyl 2-({trans-4-[(tert-butoxycarbonyl)amino]cyclohexyl}amino)quinazoline-7-carboxylate (1.0 g, 4.0 mmol) was dissolved in MeOH (20 ml). To this solution LiOH (538.0 mg, 22.5 mmol) was added and then heated to 50° C. for 16 hours. Evaporation of the solvent and partition with EtAc/H2O, followed by separation of the organic layers and evaporation provided the crude product. Purification using a silica gel column with 40% EA in heptane to give 780.0 mg of the desired product (yield 81.3%). 1H NMR (400 MHz, DMSO-d6) ppm 1.23-1.36 (m, 4H), 1.38 (s, 9H), 1.82 (s, 2H), 1.93-2.05 (m, 2H), 3.18-3.27 (m, 1H), 3.77 (s, 1H), 6.76 (d, J=8.06 Hz, 1H), 7.27 (d, J=8.06 Hz, 1H), 7.63-7.71 (m, 1H), 7.71-7.78 (m, 1H), 7.93 (s, 1H), 9.10 (s, 1H). (APCI); 387.5 ([M+H]+).

Provenance & Evidence