Реакция #5816

Уравнение реакции

sodium bicarbonate

amorphous compound

6,7-Dibenzyloxy-2-(5-Isoquinolinesulfonyl)-3-[(4-Phenylpiperazinyl)Methyl]-1,2,3,4-Tetrahydroisoquinoline

1,2-ethanedithiol

boron trifluoride ethyl ether

→

title compound

Выход 90.9%

6,7-Dihydroxy-2-(5-Isoquinolinesulfonyl)-3-[(4-Phenylpiperazinyl)methyl]-1,2,3,4-tetrahydroisoquinoline

Выход 90.9%

Условия реакции

Обработка

1. 1
   Экстракцияthe reaction mixture was extracted twice with a mixture of chloroform and methanol (1:1)
2. 2
   Сушкаthe extract was dried over magnesium sulfate
3. 3
   Концентрированиеconcentrated under a reduced pressure
4. 4
   Другоеto obtain a residue, which
5. 5
   Промывкаeluted with chloroform/methanol (50:1 to 20:1)

Методика

To 314 mg of the amorphous compound obtained in Example 9, were added 2 ml of 1,2-ethanedithiol and 1 ml of boron trifluoride/ethyl ether, and the mixture was stirred at a room temperature for 18 hours. After the addition of saturated sodium bicarbonate aqueous solution, the reaction mixture was extracted twice with a mixture of chloroform and methanol (1:1), and the extract was dried over magnesium sulfate and concentrated under a reduced pressure to obtain a residue, which was then applied to a silica gel column and eluted with chloroform/methanol (50:1 to 20:1) to obtain 213 mg of the title compound in a colorless amorphous form.

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