[7,9,19-13C3]-(1S,3R,5R,8R)-1-(tert-butyldiphenylsilyloxy)-3,5-didehydro-8-hydroxy-9,10-seco-25-(trimethylsilyloxy)cholest-6,10(19)-diene 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 16.0h,
以92%的产率得到[7,9,19-13C3]-(1S,3R,5R,8R)-3,5-didehydro-1,8,25-trihydroxy-9,10-secocholesta-6,10(19)-diene