摘要 |
Disclosed is an isomer, enantiomer, diastereoisomer or tautomer of a compound represented by Formula I or II or a salt thereof, in which R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, R<SUP>100</SUP>, R<SUP>200</SUP>, R<SUP>300</SUP>, A, A<SUP>1</SUP>, BG, Q and Q<SUP>1 </SUP>are substituents described herein. Also disclosed is the use of compounds of Formula I and II to treat proliferative disorders such as cancer. |