Novel estradiol derivative-alkylating agent conjugate with reduced hormonal activity, process for preparing the same, compounds useful for the preparation thereof, and growth inhibiting composition containing the conjugate or estradiol derivative

摘要

An estradiol derivative-alkylating agent conjugate of formula (I'): CHEM wherein each R1 is independently C1-4 alkoxy; R2 is acyl or benzyl; m is an integer of 1 to 3; and n is an integer of 0 to 3.