(2R)-2-<(2S,3S,5R)-tetrahydro-3,5-dimethyl-6-oxo-2H-pyran-2-yl>propionaldehyde 、
9-{(Z)-1-[(S)-(tert-Butyl-dimethyl-silanyloxy)-cyclohexyl-methyl]-propenyloxy}-9-bora-bicyclo[3.3.1]nonane 以
二氯甲烷 为溶剂,
反应 1.0h,
以71%的产率得到(3R,5S,6S)-6-[(1S,2S,3R,5S)-5-(tert-Butyl-dimethyl-silanyloxy)-5-cyclohexyl-2-hydroxy-1,3-dimethyl-4-oxo-pentyl]-3,5-dimethyl-tetrahydro-pyran-2-one