| abstract |
A compound for treating cancer, and a pharmaceutically acceptable salt thereof, which has a structure represented by the following chemical formula (I) or chemical formula (II): Among them, X and Y represent each independently or ; R 1 and R 3 each independently represent a hydrogen atom or a fluorenyl group having a carbon number of 20 or less; R 2 represents a hydrogen atom, a fluorenyl group having a carbon number of 20 or less, an alkyl group having a carbon number of 20 or less, and a carbon number of 20 or less Aryl, aralkyl having 20 or less carbon, or heteroatom-containing alkyl having 20 or less carbon; R 4 represents a hydrogen atom, or alkyl having 20 or less carbon, aryl or carbon having 20 or less carbon Aralkyls having a number of 20 or less or heteroatom-containing alkyl groups having a carbon number of 20 or less; R 5 represents an alkyl group having a carbon number of 20 or less, an aryl group having a carbon number of 20 or less, an aralkyl group having a carbon number of 20 or less, and carbon Heteroatom-containing alkyl groups having a number of 20 or less. |