Sodium Hydroxide → HCID 178434344, compound

Participants

Reaction Conditions

Reaction Steps

To a vial was added 8-(2-(3-methyl-1H-indazol-6-ylamino)furo[3,2-d]pyrimidin-4-yl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one (0.100 g, 0.238 mmol, prepared using A from 2,4-dichlorofuro[3,2-d]pyrimidine [ArkPharm] with 1-oxa-3,8-diazaspiro[4.5]decan-2-one [Chembridge], B with Example #3, Step B and C) in MeOH (3 mL). Then aqueous NaOH (5 M, 0.715 mL, 3.58 mmol) was added. The mixture was heated in a microwave at about 100° C. for about 30 min (300 psi maximum pressure, 2 min ramp, 250 max watts). Aqueous NaOH (5 M, 0.350 mL, 1.75 mmol) was added. The mixture was heated in a microwave at about 120° C. for about 40 min (300 psi maximum pressure, 2 min ramp, 250 max watts). The mixture was filtered and the filtrate was cooled on ice and the precipitate formed was collected via filtration and dried in a vacuum oven at about 75° C. for about 15 h to give 4-(aminomethyl)-1-(2-(3-methyl-1H-indazol-6-ylamino)furo[3,2-d]pyrimidin-yl)piperidin-4-ol (0.07 g, 75%): LC/MS (Table 2, Method c) Rt=1.44 min.; MS m/z: 394 (M+H)+. Syk IC50=A

Provenance & Evidence