MULTINOMIAL ENCODING FOR OLIGONUCLEOTIDE-DIRECTED COMBINATORIAL CHEMISTRY

The present disclosure relates to multifunctional molecules, including molecules according to formula (I-A) [(B1)M-L1]O-G, and (I) [(B1)M-L1]O-G-[(L2-(B2)K]P wherein B1, M, L1, O, G, L2, B2, K, and P are defined herein, wherein each positional building block B1 is identified by from 1 to 5 coding regions in G, and from about 10% to 100% of the positional building blocks B1 at position M and/or B2 at position K, based on a total number of positional building blocks, are identified by a combination of from 2 to 5 independent coding regions. Methods of making such multifunctional molecules, and methods of serially enriching an oligonucleotide encoded library, are also disclosed. The present disclosure also relates to methods of preparing and using such multifunctional molecules to identify encoded molecules capable of binding target molecules.