Water → 2-Methyloctanamide

Temperature

-10 °C

The [1RS-(2-exo,3-exo)]-3-(4-chlorophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carbonyl chloride 21 obtained in Example 17 was dissolved in 10 ml of dichloromethane, and the solution was cooled to −10° C. A solution of 197 mg (1 mmol) of 4-methoxybenzylthioethylamine in 10 ml of dichloromethane and then 0.28 ml (2 mmol) of triethylamine were added thereto under nitrogen, and the resulting mixture was stirred at room temperature for 6 hours. Thereafter, 20 ml of water was added thereto and the desired compound was extracted three times with dichloromethane. The combined organic layer was dried over sodium sulfate and then distilled to remove the solvent. The oil thus obtained was purified by silica gel column chromatography (eluent: ethyl acetate/methanol/aqueous ammonia=8.5/1/0.5) to obtain [1RS-(2-exo,3-exo)]-3-(4-chlorophenyl)-N-[2-[S-(4-methoxybenzyl)thio]ethyl]-8-methyl-8-azabicyclo[3.2.])-octane-2-carboxamide as an oil.

1. extractionthe desired compound was extracted three times with dichloromethane
2. dry with materialThe combined organic layer was dried over sodium sulfate
3. distillationdistilled
4. customto remove the solvent
5. customThe oil thus obtained
6. customwas purified by silica gel column chromatography (eluent: ethyl acetate/methanol/aqueous ammonia=8.5/1/0.5)

ORD record

ord-6c27f3be207a4277b934ebec620c0172

Source dataset

uspto-grants-2003_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06596868B2