Triethylamine → HCID 57827616, compound

Participants

Reaction Steps

tert-Butyl (±)-{(4aR*,7aS*)-7a-[3-(2-fluoropyridin-3-yl)phenyl]-4,4a,5,6,7,7a-hexahydropyrrolo[3,4-d][1,3]thiazin-2-yl}carbamate obtained in Preparation Example 18-(9) (72 mg) was mixed with 4-fluorobenzeneboronic acid (24.7 mg), copper (II) acetate (6.1 mg), triethylamine (93.2 μL, specific gravity: 0.73 g/cm3) and molecular sieves 4A (powder) (57.6 mg) in dichloromethane (3 mL), and the mixture was stirred under a nitrogen atmosphere at room temperature for 11 hours and 30 minutes. 4-Fluorobenzeneboronic acid (23.5 mg) and copper (II) acetate (12 mg) were further added. The atmosphere was changed to an open system, followed by further stirring. After 23 hours and 45 minutes, the reaction suspension was purified by NH-silica gel column chromatography. The resulting product was purified again by pTLC to obtain the title compound (15 mg).

Provenance & Evidence