Water → HCID 22282491, compound

Participants

Reaction Steps

To a solution of of 2-methyl-4-(3-cyanophenyl)-5-carbomethoxythiazole from Example 9, Part A (0.96 g, 3.7 mmol) in 20 mL of tetrahydrofuran and 10 mL of water was added lithium hydroxide monohydrate (0.31 g, 7.4 mmol). The resulting mixture was stirred at room temperature for 16 h. The mixture was-concentrated in vacuo, diluted with H2O and saturated aqueous NaHCO3 and extracted with hexane. The organic layer was discarded and the aqueous layer was acidified and extracted twice with ethyl acetate. The combined ethyl acetate extracts were washed with brine, dried over MgSO4 and concentrated in vacuo to afford 0.90 g (99%) of the title compound, which was sufficiently pure to be used without purification. MS(NH3—CI) 245 (M+H)+.

Provenance & Evidence