(1R,2S)-(+)-cis-1-Amino-2-indanol → (E)-5-[(1R,2S)-2-hydroxyindan-1-ylamino]-2-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]valeric acid ethyl ester

Participants

Reaction Steps

To a methylene chloride (2.0 mL) solution of (E)-2-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]-5-oxovaleric acid ethyl ester (110 mg), (1R,2S)-amino-2-indanol (63.2 mg), acetic acid (0.1 mL) and sodium triacetoxy borohydride (81.7 mg) were added one by one. After agitating reaction solution at room temperature overnight, a saturated sodium bicarbonate water and ethyl acetate 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. The residue was purified by silica gel chromatography (Carrier: Chromatorex™ NH, elution solvent: ethyl acetate=1:1->heptane-ethyl acetate), and 120 mg of the title compound was obtained. The physical properties of the compound are as follows.

Provenance & Evidence