| 摘要 |
A compound, or a pharmaceutically acceptable salt or ester thereof, having a structure of:;
wherein A, B and D are each oxygen or sulfur, provided that least one of A, B and D is sulfur; and R1-R8 are each independently hydrogen, hydroxyl, acyl, substituted acyl, acyloxy, substituted acyloxy, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, alkoxy, substituted alkoxy, aryl, substituted aryl, amino, substituted amino, halogen, heterocycloalkyl, substituted heterocycloalkyl, heteroaryl, substituted heteroaryl, or a thio-containing group. |
| 主权项 |
1. A compound, or a pharmaceutically acceptable salt thereof, having a structure of:wherein A, B, D and E are each oxygen or sulfur, and R2-R4 and R6-R8 are each independently hydrogen, hydroxyl, acyl, substituted acyl, acyloxy, substituted acyloxy, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, alkoxy, substituted alkoxy, aryl, substituted aryl, amino, substituted amino, halogen, heterocycloalkyl, substituted heterocycloalkyl, heteroaryl, substituted heteroaryl, or a thio-containing group, provided that
A and B are sulfur, and D and E are oxygen, or A and D are sulfur, and B and E are oxygen, or B and E are sulfur, and A and D are oxygen, or D and E are sulfur, and A and B are oxygen. |
