N-(9-FluorenylMethoxycarbonyl)-4',6,8,11-tetra-O-benzoyl Doxorubicin is the derivative of N-(9-Fluorenylmethoxycarbonyl) Doxorubicin (F472430) ,it is used in the preparation of a modified Doxorubicin (ANG1007) and Etoposide (ANG1009) useful due to their brain penetration ability.