Precursor diversity and property space coverage are essential for your drug discovery pipeline. Focus Synthesis LLC offers highly distinctive synthons, scaffolds, building blocks, and exotic heterocycles that are optimized for medicinal chemistry using cheminformatics-based design. Computer-aided design allows us to offer small molecules that are radically different from those offered by the competition. These include Rare and Unique Substructures (R), which are not found outside of Focus Synthesis in the ACD on substructure searching, and molecules chosen to fill voids in chemical property space. Focus Synthesis also provides custom synthesis and design services.