Multi-step reaction with 11 steps
1.1: 88 percent / NaHCO3 / tetrahydrofuran / 0.5 h / 0 °C
2.1: K2CO3 / acetone / 8 h / Heating
3.1: 79 percent / LiBH4 / tetrahydrofuran / 18 h / 0 - 20 °C
4.1: 100 percent / imidazole / dimethylformamide / 18 h / 0 °C
5.1: 100 percent / H2 / 10 percent Pd-C / methanol / 2 h / 20 °C / atmospheric pressure
6.1: 100 percent / pyridine / 1 h / 0 °C
7.1: 93 percent / Et3N; Pd(OAc)2; DPPP / methanol; dimethylsulfoxide / 2 h / 20 - 70 °C
8.1: 93 percent / TBAF / tetrahydrofuran / 0.5 h / 0 °C
9.1: tetrazole / acetonitrile / 2 h / 20 °C
10.1: m-CPBA / CH2Cl2 / 0.5 h / 0 °C
11.1: DBU / tetrahydrofuran / 3 h / Heating
11.2: 38 percent / 1M HCl
With
1H-imidazole; 1H-tetrazole; palladium diacetate; lithium borohydride; 1,3-bis-(diphenylphosphino)propane; tetrabutyl ammonium fluoride; hydrogen; sodium hydrogencarbonate; potassium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; 3-chloro-benzenecarboperoxoic acid;
palladium on activated charcoal;
In
tetrahydrofuran; pyridine; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide; acetone; acetonitrile;
DOI:10.1016/S0968-0896(02)00381-4