Multi-step reaction with 11 steps
1: 57 percent / TiCl4 / CH2Cl2 / 1 h / Ambient temperature
2: 61 percent / HNO3, AcOH / tetrahydrofuran / 1 h / Ambient temperature
3: 1.) NaH / 1.) DMF, 0 deg C, 15 min, 2.) DMF, 60 deg C, 1 h
4: 94 percent / NaH2PO4, NaClO2 / H2O; dimethylsulfoxide / 0.5 h / Ambient temperature
5: 88 percent / K2CO3 / dimethylformamide / 12 h / Ambient temperature
6: pyrrolidine / dimethylformamide / 6 h / Heating
7: 19 percent / Zn, 80percent aq. CH3COOH / 85 °C
8: 1.) NaH / 1.) DMF, 0 deg C, 2.) DMF, RT, 30 min
9: H2 / 10percent Pd/C / ethyl acetate; H2O / 5 h / 760 Torr
10: N,N-diisopropylethylamine / CH2Cl2 / 1 h / Ambient temperature
11: diisobutylaluminium hydride / CH2Cl2; toluene / -78 - 20 °C
With
pyrrolidine; sodium chlorite; sodium dihydrogenphosphate; hydrogen; nitric acid; titanium tetrachloride; sodium hydride; diisobutylaluminium hydride; potassium carbonate; acetic acid; N-ethyl-N,N-diisopropylamine; zinc;
palladium on activated charcoal;
In
tetrahydrofuran; dichloromethane; water; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide; toluene;
DOI:10.1016/0223-5234(96)89134-3