反应详情

Sodium borohydride (1.6 mg, 0.04 mmol) was added to 6-O-(4′-{(2S,3R)-1-(4-fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-oxoazetidin-2-yl}biphenyl-3-yl)-D-glucopyranose (26.3 mg, 0.04 mmol) dissolved in 80:20 acetonitrile-water (1 mL) at room temperature. The reaction was stirred for 10 min at room temperature monitoring by LCMS. Upon completion, the reaction was diluted with 50:50 acetonitrile:water (3 mL) and filtered through a Whatman 0.45 μM glass microfiber filter then purified by preparative HPLC (Polaris C18-A 10 μ 250×21.2 mm column, 30% to 95% acetonitrile-0.1% trifluoroacetic acid in water) affording 6-O-(4′-{(2S,3R)-1-(4-fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-oxoazetidin-2-yl}biphenyl-3-yl)-D-glucitol (21.2 mg, 80% yield). 1H NMR (300 MHz, CDCl3/1% CD3OD) δ 7.58 (d, J=8.1 Hz, 2H), 7.39-7.24 (m, 7H), 7.17-7.15 (m, 2H), 7.04-6.92 (m, 5H), 4.71 (d, J=2.1 Hz, 1H), 4.68 (t, J=6.3 Hz, 1H), 4.31-4.27 (m, 1H), 0.19-4.14 (m, 1H), 4.08-4.02 (m, 1H), 3.97-3.95 (m, 1H), 3.86-3.65 (m, 4H), 3.14-3.12 (m, 1H), 2.01-1.88 (m, 4H) ppm; MS [M+HCO2−]− 694.0.

1. filtrationwater (3 mL) and filtered through a Whatman 0.45 μM glass microfiber
2. filtrationfilter
3. customthen purified by preparative HPLC (Polaris C18-A 10 μ 250×21.2 mm column, 30% to 95% acetonitrile-0.1% trifluoroacetic acid in water)