1: 68 percent / tetrahydrofuran / -65 deg C, 3 h -> room temperature, 20 h 2: 1.) 9-BBN, (+)-α-pinene, 2.) 2-hydroxyethylamine, 3.) NaH, 4.) H2 / 4.) Pd on CaCO3 View Scheme

in tetrahydrofuran -65 deg C, 3 h -> room temperature, 20 h;