The aqueous layer was then extracted with 5 x 15 ml DCM. dried over sodium sulphate and concentrated to a final volume of 1.2 ml on a Kuderna-Danish evaporator at 53’C
The aqueous layer was then extracted with 5 x 15 ml DCM. dried over sodiumsulphate and concentrated to a final volume of 1.2 ml on a Kuderna-Danish evaporator at 53’C