Sodium borohydride → HCID 70235707, compound

Participants

Reaction Steps

A mixture of sodium borohydride (0.058 g, 1.40 mmol) and ethanol (5 mL) was stirred 10 min and then 1-(3,5-difluoro-4-triisopropylsilyloxyphenyl)-2-(4-(-4-chlorophenyl)-4-hydroxypiperidin-1-yl)-propan-1-one (0.76 g, 1.38 mmol in 20 mL of ethanol) was added. The reaction was stirred at ambient temperature over the weekend. The white solid which precipitated was collected by filtration and dried to yield 0.43 g (57%) of (1R*,2R*)-1-(3,5-difluoro-4-triisopropylsilyloxyphenyl)-2-(4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl)-propan-1-ol which was suitable for use without further purification and had: mp 192-192.5° C. Analysis calculated for C29H42ClF2NO3Si.0.25 H2O: C, 62.35; H, 7.67; N, 2.51. Found: C, 62.37; H, 7.81; N, 2.73.

Provenance & Evidence