反应详情

UTP trisodium salt (1.00 g, 1.82 mmol) was dissolved in deionized water (13 mL), and the solution was caused to pass through a strong cation-exchange column (PK 216, proton-type, 10 cc). The eluate was mixed with a column wash solution, and the mixture was neutralized with tributylamine (1.75 mL, 7.35 mmol). The resultant solution was concentrated under reduced pressure, and the residue was co-boiled four times with dioxane (10 mL). The residue was dissolved in dimethylformamide (10 mL), to thereby yield a 0.133 M dimethylformamide solution of UTP tributylamine salt.

1. additionThe eluate was mixed with a column
2. washwash solution
3. concentrationThe resultant solution was concentrated under reduced pressure
4. dissolutionThe residue was dissolved in dimethylformamide (10 mL)