Bisphosphonate compounds and methods with enhanced potency for multiple targets including FPPS, GGPPS, and DPPS

The disclosure provides, inter alia, novel bisphosphonate compounds and methods of making and using such compounds. In certain embodiments, compounds of the invention include bisphosphonates that are capable of selectively inhibiting one or more of farnesyl diphosphate synthase (FPPS), geranylgeranyl diphosphate synthase (GGPPS), and decaprenyl pyrophosphate synthase (DPPS). In preferred embodiments, compounds of the invention are capable of selectively inhibiting two or more of FPPS, GGPPS, and DPPS. In embodiments, compounds and methods of the invention demonstrate superior activity levels, such as in the anti-cancer context, immunostimulation context, and other contexts, which in several cases exceed the activity levels of previous generation bisphosphonate drugs by orders of magnitude. In embodiments, the invention provides compounds and methods in connection with research and therapeutic applications, e.g., for tumor or cancer cell growth inhibition, activation of gammadelta T cells, inhibition of certain enzymes related to the mevalonate metabolic pathway, bone resorption diseases, cancer, immune disorders, immunotherapy, and infectious diseases.