Organophosphate derivatives

A compound having the structure of Formula (II):

• wherein:
• R3 is H, —C(O)R9, or —C(O)OR9;
• R4 is H;
• R9 is C1-8alkyl;
• R11 is C6-22alkyl, C3-22alkenyl, C3-22alkynyl, C3-22haloalkyl, —C1-4alkyl-OC(O)C1-8alkyl, C6-10aryl, —C1-8alkyl-C6-10aryl, C2-9heteroaryl, or —C1-8alkyl-C2-9heteroaryl, wherein C6-10aryl, —C1-8alkyl-C6-10aryl, C2-9heteroaryl, or —C1-8alkyl-C2-9heteroaryl are optionally substituted with 1, 2, 3, or 4 R12;
• each R12 is independently selected from halogen, C1-8alkyl, C1-8haloalkyl, C1-8alkoxy, and —C(O)R13;
• and
• each R13 is independently selected from C1-12alkyl;
• or a pharmaceutically acceptable salt thereof.