Triethylamine → ((8R)-10-(5-Chlorofuran-2-yl)-5-(3-fluorophenyl)-1,3-dimethyl-2,4-dioxo-2,3,4,7,8,10-hexahydro-1H-pyrimido[4',5':3,4]pyrrolo[2,1-c][1,4]oxazin-8-yl)methyl methanesulfonate

Participants

Reaction Conditions

Reaction Steps

Methanesulfonyl chloride (0.021 ml, 0.274 mmol) was added dropwise to a solution of (8R)-10-(5-chlorofuran-2-yl)-5-(3-fluorophenyl)-8-(hydroxymethyl)-1,3-dimethyl-7,8-dihydro-1H-pyrimido[4′,5′:3,4]pyrrolo[2,1-c][1,4]oxazine-2,4(3H,10H)-dione (Example 6, Step 3) (100 mg, 0.217 mmol), triethylamine (0.039 ml, 0.283 mmol) and DMAP (2.66 mg, 0.022 mmol) in DCM (2 mL). The mixture was stirred at 0° C. for 30 mins then diluted with DCM (20 ml) and quenched with water (20 mL). The phases were separated and the organic layer was dried over magnesium sulfate and evaporated under vacuum to afford the title compound.

Provenance & Evidence