3,6-Dihydro-2H-pyran-4-boronic acid pinacol ester → 8-(3,6-dihydro-2H-pyran-4-yl)-6-methyl-[1,2,4]triazolo[1,5-a]pyridin-2-amine
Reaktionsgleichung
Br[C:2]1[C:3]2[N:4]([N:9]=[C:10]([NH2:12])[N:11]=2)[CH:5]=[C:6]([CH3:8])[CH:7]=1.[O:13]1[CH2:18][CH:17]=[C:16](B2OC(C)(C)C(C)(C)O2)[CH2:15][CH2:14]1>>[O:13]1[CH2:14][CH:15]=[C:16]([C:2]2[C:3]3[N:4]([N:9]=[C:10]([NH2:12])[N:11]=3)[CH:5]=[C:6]([CH3:8])[CH:7]=2)[CH2:17][CH2:18]1Komponenten
3
Versuchsvorschrift
Prepared in analogy to example 160b, starting from 8-bromo-6-methyl-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine and 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. The title compound was obtained a light brown solid (yield: 55%) after column chromatography on silica gel using ethyl acetate as eluent.
Aufarbeitung
- customPrepared in analogy to example 160b