HCID 15550516, compound → HCID 15550517, compound

Participants

Reaction Steps

The compound (4.63 g) of Example 9 was dissolved into 47% hydrobromic acid (50 ml) and the solution was refluxed for 1 hour under heat. This was poured into ice water and extracted with methylene chloride. After the organic layer was dried over anhydrous sodium sulfate, solvent was distilled off under reduced pressure. The residue was purified by means of silica gel column chromatography (developing solvent, methylene chloride:ethanol=10:1) to obtain aimed product (2.76 g) as purple powder.

Provenance & Evidence