HCID 68694352, compound → HCID 68691308, compound

Participants

Reaction Steps

To a solution of R-CBS reagent (90 μL, 1M sol.) and BH3DMS (220 μL, 2.34 mmol) in 3.6 ml of toluene at −10° C. was dropwise added over about 2 h, a solution of the product from Step 1 (500 mg, 1.8 mmol) in 1.8 mL of THF. After addition was complete, the reaction mixture was quenched with 0.5 N HCl. The resulting mixture was transferred to a seperatory funnel and the aqueous layer was washed 3× with EtOAc. The organic layers were combined, dried over MgSO4, filtered and concentrated to yield an oil, which was was purified by chiral HPLC (77% ee prior to chiral separation) to afford the title compound.

Provenance & Evidence