Multi-step reaction with 14 steps
1.1: trifluoroacetic anhydride / dichloromethane / 1 h / 20 °C
2.1: 18 h / 90 °C / Reflux
3.1: N-ethyl-N,N-diisopropylamine; HATU / N,N-dimethyl-formamide / 1 h
4.1: sodium hydride / N,N-dimethyl-formamide / 1 h / Cooling with ice
4.2: 0 °C
5.1: triethylamine / dichloromethane / 0.25 h / Cooling with ice
6.1: sodium carbonate; tetrakis(triphenylphosphine) palladium(0) / water; 1,4-dioxane / 2 h / 80 °C / Inert atmosphere
7.1: lithium hydroxide; methanol / tetrahydrofuran / Reflux
7.2: 0 °C / pH < 2
8.1: thionyl chloride / 2 h / 70 °C
9.1: sodium tetrahydroborate / tetrahydrofuran / 70 °C
9.2: 0 °C
10.1: sulfurous dibromide / cis-1,2-Dichloroethylene / 2 h / 70 °C
11.1: N,N-dimethyl-formamide / 20 °C
12.1: water; potassium hydroxide / ethanol / 72 h / 140 °C / Sealed tube
12.2: 0 °C / pH < 2
13.1: hydrogenchloride; acetic acid / 1 h / 120 °C / Microwave irradiation
13.2: 0.33 h / 0 °C
14.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.33 h / -78 °C
14.2: 0.33 h / 0 °C
14.3: pH < 2
With
hydrogenchloride; methanol; sodium tetrahydroborate; sulfurous dibromide; tetrakis(triphenylphosphine) palladium(0); thionyl chloride; water; sodium hydride; sodium carbonate; acetic acid; triethylamine; N-ethyl-N,N-diisopropylamine; HATU; trifluoroacetic anhydride; potassium hydroxide; lithium hydroxide; lithium hexamethyldisilazane;
In
tetrahydrofuran; 1,4-dioxane; cis-1,2-Dichloroethylene; ethanol; dichloromethane; water; N,N-dimethyl-formamide;