Multi-step reaction with 8 steps
1.1: acetic acid / 24 h / 92 °C / Industry scale; Inert atmosphere
2.1: N,N-dimethyl-aniline; phosphorus trichloride / toluene / 16 h / 110 °C / Industry scale; Inert atmosphere
2.2: 25 °C / pH > 12
3.1: 2,4,6-Triisopropylbenzenesulfonyl azide; potassium tert-butylate / 2-methyltetrahydrofuran / 2.5 h / 40 - 50 °C / Inert atmosphere; 3 ? molecular sieve
3.2: 36 h / -20 - 30 °C / pH > 12
4.1: hydrogen / platinum(IV) oxide / 1,4-dioxane / 3 h / 7500.75 Torr / Industry scale; Autoclave
5.1: sodium carbonate / tetrakis(triphenylphosphine) palladium(0) / 1,2-dimethoxyethane / 3 h / 80 °C / Inert atmosphere
6.1: aluminum (III) chloride / methoxybenzene / 16 h / 70 °C / Inert atmosphere
7.1: triethylamine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate / N,N-dimethyl-formamide / 0.5 h
7.2: 20 °C
8.1: CHIRALPAK.(R). AD-H / ethanol; 2-Methylpentane / 20 °C
With
aluminum (III) chloride; 2,4,6-Triisopropylbenzenesulfonyl azide; potassium tert-butylate; hydrogen; sodium carbonate; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; acetic acid; N,N-dimethyl-aniline; triethylamine; phosphorus trichloride;
platinum(IV) oxide; tetrakis(triphenylphosphine) palladium(0);
In
2-methyltetrahydrofuran; 1,4-dioxane; 1,2-dimethoxyethane; ethanol; 2-Methylpentane; methoxybenzene; N,N-dimethyl-formamide; toluene;