Potassium Carbonate → HCID 86711935, Verbindung

Temperatur

110 °C

To a mixture of 5-(1-(3-bromobenzyl)-5-methyl-1H-1,2,4-triazol-3-yl)-3-(4-(trifluoromethoxy)phenyl)-1,2,4-oxadiazole (Example 11, Step 1; 200 mg, 0.42 mmol), tributyl(vinyl)stannane (159 mg, 0.50 mmol) and K2CO3 (174 mg, 1.26 mmol) in 1,4-dioxane (5 mL), was added Pd(PPh4)3 (28 mg, 0.025 mmol). The reaction mixture was heated in a sealed vial at 110° C. under inert atmosphere for 12 h, cooled to RT, diluted with H2O (30 mL) and extracted with EtOAc (2×20 mL). The combined organic layers were washed with H2O (10 mL) and brine (10 mL), dried over Na2SO4, filtered and concentrated under reduced pressure; the residue was purified by prep-HPLC to give the title compound as a white solid; MS (ES+) C21H16F3N5O2 requires: 427. found: 428 [M+H]+; 1H-NMR (500 MHz, DMSO-d6) δ 8.22 (d, J=9 Hz, 2H), 7.61 (d, J=9 Hz, 2H), 7.48 (d, J=7 Hz, 1H), 7.43 (s, 1H), 7.38 (m, 1H), 7.21 (d, J=7 Hz, 1H), 6.76 (m, 1H), 5.87 (d, J=17.5 Hz, 1H), 5.57 (s, 2H), 5.31 (d, J=11.5 Hz, 1H), 2.60 (s, 3H).

1. temperaturecooled to RT
2. extractionextracted with EtOAc (2×20 mL)
3. washThe combined organic layers were washed with H2O (10 mL) and brine (10 mL)
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customthe residue was purified by prep-HPLC

ORD-Eintrag

ord-4f09069823454ecf9a462de6f1204885

Quelldatensatz

uspto-grants-2015_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09018380B2