Multi-step reaction with 11 steps
1: 74 percent / N-idosuccinimide; silver triflate / CH2Cl2
2: 100 percent / NaOMe / methanol; tetrahydrofuran / 48 h / 20 °C
3: KBr; 1,2,6,6-tetramethylpiperidine-1-oxide; NaOCl / aq. NaHCO3; tetrahydrofuran / 0.5 h / 20 °C
4: dimethylformamide / 12 h
5: 1.68 percent / DMAP / dimethylformamide / 12 h / 20 °C
6: 100 percent / TFA / 12 h / 20 °C
7: 65 percent / benzylamine / diethyl ether / 1 h / 0 °C
8: 81 percent / K2CO3 / CH2Cl2 / 12 h / 20 °C
9: 54 percent / BF3*Et2O / CH2Cl2 / 12 h / 20 °C
10: NaBH4; NiCl2*6H2O; B(OH)3 / ethanol / 0.5 h
11: 51.0 mg / pyridine / 12 h
With
pyridine; dmap; sodium hypochlorite; sodium tetrahydroborate; N-iodo-succinimide; 1,2,6,6-tetramethylpiperidine-1-oxide; boron trifluoride diethyl etherate; sodium methylate; silver trifluoromethanesulfonate; boric acid; potassium carbonate; benzylamine; trifluoroacetic acid; potassium bromide; nickel dichloride;
In
tetrahydrofuran; methanol; diethyl ether; ethanol; dichloromethane; sodium hydrogencarbonate; N,N-dimethyl-formamide;
DOI:10.1016/j.carres.2004.07.018