Sodium Hydroxide → 827573-11-5

Participants

Reaction Steps

A solution of sodium hydroxide (1.4 g) in a mixture of water (40% v/v)/Ethanol or Methanol or IPA (60% v/v, 10 volumes per grams of ZLD-Ac form XII) (13 ml) was added drop-wise to a suspension of Zoledronic acid form XII (5.0 g) in a mixture of water (40% v/v)/Ethanol or Methanol or IPA (60% v/v, 10 volumes per grams of ZLD-Ac) (71 ml) at reflux temperature. The reaction mixture was heated at reflux temperature for additional 16 hours. Then the reaction mixture was cooled to room temperature. Further cooling was performed using an ice-bath. The precipitate was then filtered, washed and dried in a vacuum oven at 50° C. for 24 hours to give Zoledronate trisodium crystal form IX.

Provenance & Evidence