Conversion of dehydroabietic acid (1) to a steroid skeleton was attempted. Synthesis of the 3-oxo compound (25) having a steroid-type A ring was successfully completed from starting material (9) via the intermediates (18) and (19).
尝试将
脱氢枞酸(1)转化为类
固醇骨架。通过中间体(18)和(19),从起始原料(9)成功合成了具有类
固醇A环的3-氧代化合物(25)。