Multi-step reaction with 7 steps
1.1: dimethylsulfide borane complex; (3aR)-1-methyl-3,3-diphenyl-tetrahydro-pyrrolo[1,2-c][1,3,2]oxazaborole / toluene; 2-methyltetrahydrofuran / 4 h / 40 - 45 °C
1.2: 1 h / 10 °C
2.1: sodium hydroxide; methyl tributylammonium chloride / water; 2-methyltetrahydrofuran / 2.33 h / 20 °C
3.1: n-hexyllithium / hexane; 2-methyltetrahydrofuran / 0 - 10 °C
3.2: 16 h / 65 - 75 °C
4.1: sodium hydroxide; water / hexane; 2-methyltetrahydrofuran / 2.33 h / 20 - 60 °C
4.2: pH < 3.5
5.1: zinc / bis(tri-t-butylphosphine)palladium(0) / N,N-dimethyl-formamide / 20 - 75 °C / 75.01 - 150.01 Torr / Inert atmosphere
5.2: 45 - 75 °C / Inert atmosphere
6.1: sodium hydroxide; dihydrogen peroxide / water / 35 °C / pH > 12
6.2: pH < 3.7
7.1: 4-methyl-morpholine / dimethyl sulfoxide / 0.08 h / 22 °C
7.2: 2.17 h / 22 °C
7.3: pH 8
With
4-methyl-morpholine; dimethylsulfide borane complex; water; dihydrogen peroxide; n-hexyllithium; methyl tributylammonium chloride; sodium hydroxide; zinc; (3aR)-1-methyl-3,3-diphenyl-tetrahydro-pyrrolo[1,2-c][1,3,2]oxazaborole;
bis(tri-t-butylphosphine)palladium(0);
In
2-methyltetrahydrofuran; hexane; water; dimethyl sulfoxide; N,N-dimethyl-formamide; toluene;