Hydrochloric Acid → HCID 69732702, compound

Participants

Reaction Steps

The compound (0.65 g) obtained in Step 3 of Example 27 was dissolved in an aqueous 0.4N sodium hydroxide solution (25 mL) and the pH was adjusted to 3 to 4 by using 3N hydrochloric acid at 5° C. and the residue was stirred at the same temperature for thirty minutes. The precipitate was collected by filtration and washed with cold water, and dried under reduced pressure to obtain the titled compound (0.61 g) as crystals.

Provenance & Evidence