Water → HCID 53241941, compound

Participants

Reaction Conditions

Reaction Steps

3-methyl-N1-(6-{[4-methyl-3-(methyloxy)phenyl]oxy}-3-pyridinyl)-D-valinamide (Intermediate 97, 5.2 mg) was dissolved in dry dichloromethane (0.5 mL). The reaction mixture was cooled down in an ice bath. Triethylamine (12.6 μl, 0.091 mmol) was added at 0° C. Then 0.5 mL of a solution of triphosgene in dry dichloromethane (2.47 mg, 0.0083 mmol) was added dropwise. The reaction mixture was stirred under argon during 20 min at 0° C. Some water was added and the aqueous layer was extracted with dichloromethane 4 times. After drying over sodium sulphate, the solvents were removed under vacuum. The residue obtained was purified by flash chromatography on silica gel (Companion system, 4 g silica cartridge) with cyclohexane/ethylacetate as eluents from 100/0 to 60/40 during 15 min and 60/40 during 10 min. This afforded the title compound (5.9 mg).

Provenance & Evidence