CPC C07D 417/14 (2013.01) [A61P 35/00 (2018.01); C07D 209/12 (2013.01); C07D 209/26 (2013.01); C07D 401/06 (2013.01); C07D 403/06 (2013.01); C07D 413/14 (2013.01); C07D 417/06 (2013.01)] | 19 Claims |
1. A method of stimulating the immune system in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of a compound of Structural Formula 8, or an enantiomer, diastereomer, or pharmaceutically acceptable salt thereof:
wherein R2 is a C1-C6 alkyl substituted with one or more hydroxyl, alkoxy, nitro, or cyano, and the compound is enantiomerically pure; or
wherein R2 is heteroaryl or
and R2a is H, C1-C6 alkyl, hydroxy, thioalkoxy (—S-alkyl), cyano (—CN), or amino; and
R4, R5, R6, and R7, are each, independently, hydrogen or halo.
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