Diisopropylethylamine → HCID 178480473, Verbindung

A stock solution of Example 23e and N,N-diisopropylethylamine (0.165 M and 0.47 M in N,N-dimethylacetamide, respectively, 275 μL, 0.042 mmol Example 23e and 0.13 mmol N,N-diisopropylethylamine), 2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate(V) (0.25 M in N,N-dimethylacetamide, 253 μL, 0.063 mmol), and 2-(4-chloro-2-fluorophenyl)acetic acid (0.40 M in N,N-dimethylacetamide, 125 μL, 0.05 mmol) were aspirated from their respective source vials, mixed through a perfluoroalkoxy mixing tube (0.2 mm inner diameter), and loaded into an injection loop. The reaction segment was injected into the flow reactor (Hastelloy coil, 0.75 mm inner diameter, 1.8 mL internal volume) set at 100° C., and passed through the reactor at 180 μL per minute (10 minute residence time). Upon exiting the reactor, the reaction mixture was loaded directly into an injection loop and purified using reverse phase HPLC(C8, acetonitrile/water (0.1% ammonium acetate), 5-100%) to give 0.0126 g (57%) of the title compound. 1H NMR (400 MHz, DMSO-d6/D2O) δ 8.06 (d, J=2.44 Hz, 1H), 7.56 (s, 1H), 7.45 (t, J=8.24 Hz, 1H), 7.40 (dd, J=8.54, 2.44 Hz, 1H), 7.31 (dd, J=9.77, 2.14 Hz, 1H), 7.25 (dd, J=8.24, 2.14 Hz, 1H), 7.17 (d, J=8.54 Hz, 1H), 6.97 (s, 1H), 6.78 (m, 2H), 6.50 (m, 2H), 4.58 (m, 2H), 4.05 (s, 3H), 3.77 (s, 2H). MS (APCI+) m/z 531.1 (M+H)+.

1. additionmixed through a perfluoroalkoxy mixing tube (0.2 mm inner diameter)
2. customset at 100° C.
3. custompassed through the reactor at 180 μL per minute (10 minute residence time)
4. custompurified

ORD-Eintrag

ord-25b8eca3d4c548acbf9b4b984a0204db

Quelldatensatz

uspto-grants-2015_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08980879B2