Cesium carbonate → N-[2-[(2,3-Difluorobenzyl)thio]-6-(2-hydroxyethoxy)pyrimidin-4-yl]methanesulfonamide

Temperatur

100 °C

A mixture of methanesulfonamide (0.228 g), tris(dibenzylideneacetone)dipalladium (0) (50 mg), 2-dicyclohexylphosphino-2′,4′,6′-tri-isopropyl-1,1′-biphenyl (XPHOS) (50 mg), cesium carbonate (0.585 g) and 2-({6-chloro-2-[(2,3-difluorobenzyl)thio]pyrimidin-4-yl)oxy}ethanol ((the product step i), 0.400 g) in dioxane (20 ml) was heated at reflux in a microwave at 100° C., 300 W, open vessel with cooling for 30 mins. The reaction mixture was then reduced in vacuo and the residue separated between DCM (150 ml) and H2O (100 ml). The organics were separated and the aqueous layer was re-extracted with DCM (2×150 ml). Organics were combined, dried (MgSO4) and reduced in vacuo and the resulting residue was purified by prep HPLC to give the title compound as a white solid. Yield: 102 mg

1. temperaturewas heated
2. temperature300 W, open vessel with cooling for 30 mins
3. customthe residue separated between DCM (150 ml) and H2O (100 ml)
4. customThe organics were separated
5. extractionthe aqueous layer was re-extracted with DCM (2×150 ml)
6. dry with materialdried (MgSO4)
7. customthe resulting residue was purified by prep HPLC

ORD-Eintrag

ord-157c52267c4f4a40a653a579ce5308ce

Quelldatensatz

uspto-grants-2014_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08722883B2