Triphenylphosphine → HCID 86602481, compound

Participants

Reaction Steps

To a THF (5 mL) solution of (E)-trans-3-hydroxy-4-(3-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene)-2-oxopiperidin-1-yl)pyrrolidine-1-carboxylic acid tert-butyl ester (30 mg) obtained in Example 554, diisopropylazodicarboxylate (0.024 mL), triphenylphosphine (33 mg) and acetic acid (0.007 mL) were added, and the reaction solution was agitated at room temperature for 3 hours. Ethyl acetate and a saturated sodium bicarbonate water were added to the reaction solution, and the organic layer was partitioned. After the obtained organic layer was washed with a saturated saline solution, it was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. 10 mg of the title compound was obtained by purifying the residue by silica gel chromatography (Carrier: Chromatorex™ NH, elution solvent: ethyl acetate). The physical properties of the compound are as follows.

Provenance & Evidence