反应详情

In a reactor, 1 g of the compound obtained in Step C and 5 eq. of NaBH4 are introduced into a 2-propanol/water 6/1 mixture, and the mixture is stirred at ambient temperature. Acetic acid (0.2 eq.) is then added and the reaction mixture is heated at 80° C. for 8 hours. After evaporating off the solvents and co-evaporation of water with toluene, the crude residue obtained is used directly in the acetylation reaction without further purification.

1. temperaturethe reaction mixture is heated at 80° C. for 8 hours
2. customAfter evaporating off the solvents and co-evaporation of water with toluene