Multi-step reaction with 12 steps
1.1: 92 percent / Cs2CO3 / dimethylformamide / 18 h / 45 °C / Heating
2.1: Mg; iodomethane / diethyl ether / 1 h / Heating
2.2: 59 percent / diethyl ether / 1 h / 0 °C
3.1: 82 percent / LiAlH4 / tetrahydrofuran / 3 h
4.1: diphenylphosphoryl azide; DBU / toluene / 20 °C
5.1: LiAlH4 / tetrahydrofuran / 0 °C
6.1: PyBOP; DIEA / CH2Cl2
7.1: LiN(SiMe3)2 / tetrahydrofuran / 0 °C
8.1: H2 / 20percent Pd(OH)2/C / ethanol / 20 °C / 760.05 Torr
9.1: HCl(gas) / ethyl acetate / 0 °C
10.1: DIEA / methanol / 20 °C / pH 5
11.1: NaCNBH3 / methanol / 20 °C
With
hydrogenchloride; lithium aluminium tetrahydride; diphenylphosphoranyl azide; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; hydrogen; sodium cyanoborohydride; caesium carbonate; magnesium; 1,8-diazabicyclo[5.4.0]undec-7-ene; N-ethyl-N,N-diisopropylamine; lithium hexamethyldisilazane; methyl iodide;
20percent Pd(OH)2/C;
In
tetrahydrofuran; methanol; diethyl ether; ethanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jm010531d