Hydrochloric Acid → 2-(4-((2-(Cyclopentyloxy)-6-(trifluoromethyl)pyrimidin-4-yl)methyl)phenyl)acetic acid

温度

50 °C

An 100-mL round bottom flask was charged with methyl 2-(4-((2-(cyclopentyloxy)-6-(trifluoromethyl)pyrimidin-4-yl)methyl)phenyl)acetate (0.100 g, 0.25 mmol), dioxane (6 ml) and water (3 ml). To this solution was then added lithium hydroxide monohydrate (0.053 g, 1.26 mmol). The resulting mixture was stirred at 50° C. for 1.5 h. The cooled reaction mixture was treated with 2N aqueous HCl until pH˜5, then diluted with ethyl acetate (75 mL). The organic layer was washed with saturated sodium chloride (5 mL), dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by chromatography on silica using hexane/ethyl acetate (10:0 to 0:10) as the eluent, followed by preparative HPLC (water/acetonitrile with 0.05% TFA) to afford the title compound (0.051 g, 53%) as an off-white solid. MW=380.36. M.p. 97-99° C. 1H NMR (DMSO-d6, 500 MHz) δ 12.28 (br s, 1H), 7.52 (s, 1H), 7.28 (d, J=8.0 Hz, 2H), 7.20 (d, J=8.0 Hz, 2H), 5.35 (septet, J=3.0 Hz, 1H), 4.11 (s, 2H), 3.52 (s, 2H), 2.00-1.89 (m, 2H), 1.77-1.65 (m, 4H), 1.65-1.55 (m, 2H); APCI MS m/z 381 [M+H]+.

1. customThe cooled reaction mixture
2. washThe organic layer was washed with saturated sodium chloride (5 mL)
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by chromatography on silica

ORDレコード

ord-790929acaf6d4d8ba75f36bea0b36cd2

出典データセット

uspto-grants-2015_12

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09221843B2