Inforna-based reprogramming of the ReFRAME small-molecule library by identifying RNA binders. (A) Left, secondary structure of the 1024-member 3×2 RNA internal loop library (3×2 ILL) and summary of the 9300-member ReFRAME library. Right, the library-versus-library screen probes over 9,500,000 combinations of RNA motif–small molecule interactions to identify the privileged RNA structures that bind small-molecule medicines with high affinity. (B) Inforna-based identification of Dovitinib (1) targeting pre-miR-21’s Dicer site, which inhibits its processing and hence its oncogenicity.