Acetyl chloride → N-Methyl-N-(2,3,11a-trimethyl-2,3,3a,4,5,5a,5b,6,8,9,10,11,11a,11b,12,13-hexadecahydro-1H-2-aza-pentaleno[1,6a-a]phenanthren-9-yl)-acetamide

Participants

Reaction Steps

A mixture of compound 7B (15 mg, 0.044 mmol), acetyl chloride (2.8 μL, 1.1 eq), triethylamine (15 μL, 3.0 eq) and dichloromethane (1 mL) was stirred at room temperature for 2 h. The clear solution was directly loaded on silica gel column and eluted with 0.5% ammonium hydroxide and 5% methanol in dichloromethane to give the desired product (10.5 mg, 78% yield)

Provenance & Evidence