8-Formylriboflavin;7-methyl-2,4-dioxo-10-D-ribitol-1-yl-2,3,4,10-tetrahydro-benzo[g]pteridine-8-carbaldehyde;α8-oxo-riboflavin (s. CA-Sach.-Reg. 1977-81);7-methyl-2,4-dioxo-10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-8-carbaldehyde
Disclosed are small molecules and pharmaceutical compositions comprising them that can be used in treating diseases associated with the major histocompatibility complex (MHC) molecule MR1.