Multi-step reaction with 12 steps
1.1: Bu3SnH / methanol / 2.5 h / 20 °C / Photolysis
2.1: 50 percent / pyridine / 20 °C
3.1: 100 percent / pyridine / 1 h / 0 - 20 °C
4.1: 100 percent / pyridine / 2 h / 0 - 20 °C
5.1: 100 percent / p-toluenesulfonic acid; EtOH / 1 h / 0 - 20 °C
6.1: 99 percent / Dess-Martin periodinane / CH2Cl2 / 72 h / 0 - 20 °C
7.1: CeCl3 / tetrahydrofuran / 4 h / -78 °C
7.2: 82 percent / tetrahydrofuran / 3 h / -78 °C
8.1: 4.66 g / CH2Cl2 / 72 h / 20 °C
9.1: ozone / CH2Cl2 / 1 h / -78 °C
9.2: 3.10 g / Me2S / CH2Cl2 / 2 h / -78 - 20 °C
10.1: KMnO4; phosphate buffer / 2-methyl-propan-2-ol; H2O / 2 h / 20 °C / pH 7
11.1: 53 mg / HCl; H2O / 2-methyl-propan-2-ol / 0 °C / pH 3
12.1: 1,1'-carbonyldi-1,2,4-triazole / dimethylformamide / 0 - 20 °C
12.2: 79 percent / dimethylformamide / 1 h / 0 °C
With
1,1'-Carbonyl-di-(1,2,4-triazole); pyridine; hydrogenchloride; potassium permanganate; phosphate buffer; cerium(III) chloride; ethanol; water; tri-n-butyl-tin hydride; Dess-Martin periodane; toluene-4-sulfonic acid; ozone;
In
tetrahydrofuran; methanol; dichloromethane; water; N,N-dimethyl-formamide; tert-butyl alcohol;
1.1: Reduction / 2.1: silylation / 3.1: silylation / 4.1: benzoylation / 5.1: desilylation / 6.1: Oxidation / 7.1: transmetallation / 7.2: Addition / 8.1: Horning silylation / 9.1: ozonolysis / 9.2: Reduction / 10.1: Oxidation / 11.1: desilylation / 12.1: triazolidation / 12.2: Acylation;
DOI:10.1021/ja962974q