Ascofuranone → HCID 23134887, compound

Participants

Reaction Steps

An ethanol (201 ml) solution of ascofuranone (1,058 mg, 2.52 mmlo) was stirred in the presence of 5% Pd/C (435 mg) in a hydrogen atmosphere at 0(C for three hours. After the catalyst was separated by filtration with the use of Celite, the filtrate was concentrated to obtain a crude product (1,178 mg). This product was purified by silica gel column chromatography (hexane:ethyl acetate═5:1) to obtain 3-chloro-4,6-dihydroxy-2-methyl-5-[3-methyl-7-(tetrahydro-5,5-dimethyl-4-oxo-2-furanyl)-octyl]benzaldehyde (a diastereomeric mixture, yellow syrup 262 mg, yield 25%).

Provenance & Evidence