Dicyclohexylcarbodiimide → HCID 18791999, compound

Participants

Reaction Steps

To a solution of the compound 1 (334 mg, 1 mmol), 60 (303 mg, 1.00 mmol) and N,N-dimethylaminopyridine (122 mg, 1 mmol) in methylene chloride (5 mL) was added 1,3-dicyclohexylcarbodiimide (206 mg, 1.08 mmol) under ice-cooling. The reaction mixture was stirred at room temperature for 18 hours. The precipitated insoluble matter was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by chromatography on a silica gel column (eluate: hexane - ethyl acetate (1:1)) to give the compound 64 (580 mg, 94%) as oil. Rf 0.27 (1:1 EtOAc-hexane).

Provenance & Evidence