Water → HCID 66961556, compound

Participants

Reaction Steps

Sodium hydride (containing mineral oil at 40%, 19.0 mg) was added to a solution of (E)-5-chloro-2-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene)valeric acid (6-fluoro-5-morpholin-4-ylindan-1-yl)amide (123 mg) in DMF (3.0 mL) at 0° C., and the reaction solution was stirred for 15 minutes. After confirming that the raw materials disappeared, water and ethyl acetate were added to the reaction solution and the organic layer was partitioned. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (elution solvent: heptane-ethyl acetate system, ethyl acetate-methanol system) to obtain 85 mg of (E)-1-(6-fluoro-5-morpholin-4-ylindan-1-yl)-3-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene)piperidin-2-one as a racemate. Next, the compound (12.0 mg) was fractionated using CHIRALCEL™ OD-H manufactured by Daicel Chemical Industries, Ltd. (2 cm×25 cm: mobile phase: hexane:ethanol=70:30) to obtain the title optically active substance with a retention time of 13 minutes (Example 973, 4.60 mg; >99% ee) and the title optically active substance with a retention time of 15 minutes (Example 974, 4.70 mg; >99% ee). The physical properties of the optically active substances are as follows.

Provenance & Evidence