反応 #86588
ord-358548c2860447c2b5cd32ad7dc6fdd6
試薬
なし
反応条件
詳細条件
See reaction.notes.procedure_details.
後処理
- 1ろ過filtering
- 2その他after reaction
- 3その他purifying filtrate by preparative RP-HPLC (column C18 or C8)
- 4その他freeze-drying
実験手順
2.95 g of atosiban acetate is prepared by dissolving the linear atosiban obtained from Example 2 in 250 ml of 10% acetonitrile aqueous solution, adjusting the pH value to 8 to 9 with 30% ammonia water, adding 0.85 g of H2O2, reacting for 60 min at 25° C., monitoring with HPLC (HPLC: 83.5%), filtering after reaction, purifying filtrate by preparative RP-HPLC (column C18 or C8), transferring salt, and freeze-drying, MS: 994.5, HPLC: 99.4%.