HCID 54331584, compound → HCID 53967250, compound

Participants

Reaction Steps

The compound (8.8 mg) obtained in Example 131 was dissolved in 90% aqueous acetic acid solution (2 ml), followed by stirring for 40 hours. The reaction solution was extracted with ethyl acetate, and the extract solution was washed with a saturated aqueous sodium chloride solution, dried over sodium sulfate and thereafter concentrated under reduced pressure. The resulting residue was purified by a silica gel column chromatography to obtain the desired compound (8.3 mg).

Provenance & Evidence