Ammonium Chloride → HCID 22875677, compound

Participants

Reaction Steps

To a solution of 100 mg (0.303 mmol) 7β-methyl-5α-4-azapregn-1-ene-3,20-dione in 10 ml dry tetrahydrofuran at -40° C. under N2 was added 15 eq ethylmagnesium bromide (4.5 mmol) in ether. The reaction was stirred and allowed to warm to RT over 18 hours. Aqueous ammonium chloride (5 ml) was added and the solvents were evaporated. The residue was partitioned between methylene chloride and water. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated. The product was purified via HPLC on a 19×300 mm 8 micron silica column using 5% isopropanol/hexane at 20 ml/min to yield 53 mg (0.147 mmol, 49% yield) of the title compound.

Provenance & Evidence