Hydrochloric Acid → HCID 178467745, compound

Participants

Reaction Conditions

Reaction Steps

The crystals obtained in step (2) (5.7 g) were dissolved in 120 ml of methanol. Sodium borohydride (0.53 g) was added under ice-cooling and stirred at 0° C. for 2 hours. After completion of the reaction, the reaction mixture was acidified by adding dilute aqueous hydrochloric acid dropwise and then extracted with chloroform. The organic layer was collected, washed with a saturated saline solution, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was recrystallized from ethanol-n-hexane to provide 4.16 g of 7-hydroxy-5-(3-hydroxybutyl) pyrazolo[1,5-a]pyrimidine as colorless crystals.

Provenance & Evidence