反应详情

The compound racemic (2′R,3R,4′S)-6-bromo-4′-(3-chlorophenyl)-1′-(2,3-dihydroxy-propyl)-2′-(1-methyl cyclopropyl)-2,3-dihydro-2,6′-dioxospiro[indole-3,3′-piperidine]-1-methoxyethyl trimethylsilane (40 mg, 0.06 mmol) was dissolved in trifluoroacetic acid (3 mL). The solution was stirred at room temperature for 1 h, then concentrated. The residue was dissolved in a solution of methanol (3 mL) and N,N′-diisopropylethylamine (1 mL). The reaction tube was then placed into the cavity of a focused monomode microwave reactor and the contents of the flask were irradiated at 120° C. for 30 min. The reaction mixture was concentrated and the residue was purified by Prep-HPLC to give title compound (20 mg, 63%) m/z (M+H)+: 533

1. concentrationconcentrated
2. dissolutionThe residue was dissolved in a solution of methanol (3 mL) and N,N′-diisopropylethylamine (1 mL)
3. customThe reaction tube was then placed into the cavity of a focused monomode microwave reactor
4. customthe contents of the flask were irradiated at 120° C. for 30 min
5. concentrationThe reaction mixture was concentrated
6. customthe residue was purified by Prep-HPLC