Potential sialyltransferase inhibitors based on neuraminyl substitution by hetaryl rings

Replacement of the neuraminyl residue by a wide range of aryl rings in transition-state analogs of CMP-Neu5Ac led to readily accessible and potent inhibitors of α-(2→6)- and α-(2→3)-sialyltransferases. The synthesis of a series of potential sialyltransferase inhibitors in which the neuraminyl residue is replaced by hetaryl methylphosphonate residues (thiazole, benzothiazole, benzoxazole, benzothiophene and thiophene) is described in this paper.

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