Multi-step reaction with 11 steps
1.1: phenyl carbamate; palladium diacetate; potassium carbonate / N,N-dimethyl-formamide / 4 h / 130 °C / Inert atmosphere
2.1: water; sodium hydroxide / tetrahydrofuran; methanol / 4 h / 20 °C
3.1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 20 °C / Inert atmosphere
4.1: sodium hydride / dimethyl sulfoxide / 1.17 h / Inert atmosphere
4.2: 2 h / 20 °C / Inert atmosphere
5.1: tetrahydrofuran / 2 h / -78 - -20 °C / Inert atmosphere
6.1: sodium tetrahydroborate / methanol / 3.25 h / 0 - 20 °C / Inert atmosphere
7.1: Chiralpak AD-H / ethanol / Resolution of racemate
8.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / 0.92 h / Inert atmosphere; Cooling with acetone-dry ice
8.2: 0.75 h / Inert atmosphere
9.1: sodium chlorite; potassium dihydrogenphosphate; 2-methyl-but-2-ene / water; tert-butyl alcohol / 0 - 20 °C
10.1: pivaloyl chloride; triethylamine / tetrahydrofuran / 0.25 h / -78 - 0 °C / Inert atmosphere
11.1: n-butyllithium / tetrahydrofuran / 0.5 h / -78 - 20 °C / Inert atmosphere
With
dmap; sodium chlorite; sodium tetrahydroborate; potassium dihydrogenphosphate; n-butyllithium; 2-methyl-but-2-ene; oxalyl dichloride; phenyl carbamate; water; palladium diacetate; pivaloyl chloride; sodium hydride; potassium carbonate; dimethyl sulfoxide; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; sodium hydroxide;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide; tert-butyl alcohol;
1.1: Heck reaction / 4.1: Corey-Chaykowsky cyclopropanation reaction / 4.2: Corey-Chaykowsky cyclopropanation reaction / 8.1: Swern oxidation;
DOI:10.1021/jm201157c