Triethylamine → Methyl-(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)-carbamic acid benzyl ester

참여 물질

반응 단계

Compound 7B (20 mg, 0.058 mmol) and triethylamine (9.1 μL, 0.064 mmol) were dissolved in dichloromethane (1 mL). Benzyl chloroformate was added to it. The mixture was stirred at room temperature for 2 hours. The crude reaction mixture was purified on silica gel column using 0.5% ammonium hydroxide and 5% methanol in dichloromethane to give the desired product (18.4 mg, 66.2% yield).

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