GSK321 is a selective and potent mutant isocitrate dehydrogenase 1 (IDH1) inhibitor that inhibits lipid synthesis and blocks cell proliferation in OPA1-deficient MEFs and prevents cytoplasmic glutamine reductive carboxylation.GSK321 has been used in the study of leukemia.

LDH-IN-1 is a novel pyrazole-based inhibitor of human lactate dehydrogenase (LDH) with IC50s of 32 and 27 nM for LDHA and LDHB, respectively.?LDH-IN-1 inhibits the growth of MiaPaCa2 pancreatic cancer and A673 sarcoma cells with IC50s of 2.23 and 1.21 μM).

TC HSD 21 is a potent and highly selective inhibitor of 17β-hydroxysteroid dehydrogenase type 3 (IC50 = 14 nM).