Multi-step reaction with 10 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -78 °C
1.2: -78 °C
2.1: hydrogen; quinoline / Lindlar catalyst / ethyl acetate / 0.67 h
3.1: diethylzinc / dichloromethane; diethyl ether / -20 °C / Inert atmosphere
3.2: 0.17 h / -20 °C / Inert atmosphere
3.3: 24 h / -20 - 0 °C / Inert atmosphere
4.1: hydrogen / 20 % Pd(OH)2/C / ethyl acetate; ethanol / 0.5 h / 2585.81 Torr
5.1: sodium periodate / dichloromethane; water / 0 °C
6.1: ethanol; sodium tetrahydroborate / 0.5 h / 20 °C
7.1: trifluoroacetic acid / dichloromethane / 0 °C
8.1: caesium carbonate / N,N-dimethyl-formamide / 6 h / 20 °C
9.1: triethylamine / dmap / dichloromethane / 1.5 h / Inert atmosphere
10.1: caesium carbonate / N,N-dimethyl-formamide / 50 °C
With
quinoline; sodium tetrahydroborate; sodium periodate; n-butyllithium; ethanol; hydrogen; diethylzinc; caesium carbonate; triethylamine; trifluoroacetic acid;
dmap; 20 % Pd(OH)2/C;
In
tetrahydrofuran; diethyl ether; ethanol; hexane; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide;
3.1: Charette cyclopropanation;