HCID 69411572, compound → HCID 58866182, compound

Participants

Reaction Steps

The above compound (3) (10.6 g) was dissolved in methanol (110 mL) and a cation exchange resin (Muromac, 50 g) was added, and then the mixture was stirred overnight at room temperature. The insoluble material was removed by filtration and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel medium pressure column chromatography (chloroform:methanol 50:1→30:1→10:1) to obtain the titled compound (7.4 g) as a syrup.

Provenance & Evidence