反应详情

2-benzyloxycarbonyl-1-(3,4-methylenedioxyphenyl)-2,3,4,9-tetrahydro-1H-β-carboline (3.63 g, 8.51 mmol)) (prepared as in Example 10) was dissolved in dry DMF (25 mL). Potassium t-butoxide (2.40 g, 21.4 mmol) was introduced in one portion and the suspension was stirred until a clear solution was obtained. Oxygen gas was then passed through the solution via a syringe needle for 16 h. The reaction was quenched by the addition of glacial acetic acid (1.23 mL, 21.0 mmol) and poured into water (250 mL), which resulted in a precipitate that was collected by filtration. The product was purified by flash chromatography (2-10% MeOH/CHCl3) to yield the product as a red powder.

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3. filtrationwas collected by filtration
4. customThe product was purified by flash chromatography (2-10% MeOH/CHCl3)