反应详情

(S)-1-t-Butoxycarbonyl-2-pyrrolidinemethanol (1.75 g, 8.71 mmol, prepared as in Example 15a) and 5-chloro-3-pyridinol (1.69 g, 13.10 mmol, Aldrich Chemical Co.). were allowed to react in the presence of triphenylphosphine and DEAD as described in Example 2a. The crude product was purified by chromatography over silica gel eluted with hexane/EtOAc to provide 1.49 g (60%) of the title compound as a pale yellow oil. TLC Rf 0.75 (1:1 EtOAc/Hex). MS (DCI/NH3) m/e 313 (M+H)+ with 35Cl and m/e 315 (M+H)+ with 37Cl.

1. customThe crude product was purified by chromatography over silica gel
2. washeluted with hexane/EtOAc