N-aryl oxamic acids

A compound of formula I:

• or a stereoisomer, tautomer, solvate, pharmaceutically acceptable salt thereof, wherein:
• (R1)n represents 1-3 independent R1 being attached to the phenyl ring wherein n is 1-3, wherein each of said 1-3 R1 independently represents a H, F, Cl, Br, I, —CN, —OR2, —COOR3, —NR4R5, —CO—R6, —SO2NR7R8, an optionally substituted C1-C5 branched or unbranched alkyl chain, an optionally substituted C3-C8 cyclic alkyl, an optionally substituted aryl, or an optionally substituted heteroaryl comprising one or more O, N, or S, or when n is 2, two independent R1 can join together to form a fused bicyclic ring with the phenyl ring;
• and
• R2-R8 each independently represents a H, an optionally substituted C1-C8 branched or unbranched alkyl chain, an optionally substituted C3-C8 cyclic alkyl, an optionally substituted aryl, or an optionally substituted heteroaryl comprising one or more O, N, or S, or a nitrogen protecting group.