Multi-step reaction with 9 steps
1.1: sodium ethanolate / ethanol / 0.5 h / 80 °C / Industry scale
2.1: triethylamine / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / 15 h / 100 °C / 3102.97 Torr / Inert atmosphere
3.1: trichloroacetic acid; (2R,5R)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one / toluene / 1 h / 20 °C
3.2: 96 h
4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 2.83 h / 0 °C / Inert atmosphere
5.1: ozone / dichloromethane; methanol / 24 h / -65 °C
5.2: polymer bound triphenylphospine / 18 h / 20 °C
6.1: sodium tetrahydroborate / dichloromethane; methanol / 2.33 h / 15 - 20 °C
6.2: pH 5
7.1: toluene-4-sulfonic acid / toluene / 4 h / 60 °C / Molecular sieve
8.1: lithium hexamethyldisilazane / toluene; tetrahydrofuran / 1.5 h / 0 - 20 °C
9.1: ozone / dichloromethane; methanol / 0.58 h / -78 °C / Sealed tube
9.2: polymer bound triphenylphospine / 1.5 h / 0 - 20 °C
9.3: 1 h / 20 °C
With
sodium tetrahydroborate; (2R,5R)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one; tetrabutyl ammonium fluoride; sodium ethanolate; toluene-4-sulfonic acid; ozone; triethylamine; lithium hexamethyldisilazane; trichloroacetic acid;
dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; toluene;