Multi-step reaction with 5 steps
1: aq. 4.0 M NaOH / methanol / 3.5 h / 23 °C
2: 1.) pivaloyl chloride, Et3N, 2.) LiCl / 1.) THF, 0 deg C, 3.5 h, 2.) THF, 23 deg C, 19 h
3: 1.) sodium bis(trimethylsilyl)amide / 1.) THF, -78 deg C, 20 min, 2.) THF, a) -78 deg C, 3 h, b) -45 deg C, 2 h
4: 1.) O3, CH3OH, 2.) Me2S / 1.) CH2Cl2, -78 deg C, 2.) CH2Cl2, a) -78 deg C, 3.5 h, b) 0 deg C, 1 h
5: 1.) NaOAc, NaCNBH3, 2.) TsOH*H2O / 1.) THF, EtOH, 23 deg C, 20 h, 2.) CH3OH, 50 deg C, 2.5 h
With
methanol; sodium hydroxide; dimethylsulfide; sodium acetate; sodium hexamethyldisilazane; pivaloyl chloride; sodium cyanoborohydride; toluene-4-sulfonic acid; ozone; triethylamine; lithium chloride;
In
methanol;
DOI:10.1021/jm9805384