#$%^&*AU2016202354B220171116.pdf#####ABSTRACT The invention features compounds of formula I or II: A JI R5 B __ 5 B carrier )-L1O Q-L 11- LIGAND R4R R3 R2 J2 Formula (I) or B (II). In one embodiment, the invention relates compounds and processes for conjugating ligand to oligonucleotide. The invention further relates to methods for treating various disorders and diseases such as viral infections, bacterial infections, parasitic infections, cancers, allergies, autoimmune diseases, immunodeficiencies and immunosuppression. 7633082_1 '