glyoxylate + pyruvate => (4R)-4-hydroxy-2-oxoglutarate
glyoxylate + pyruvate => (4r)-4-hydroxy-2-oxoglutarate
glyoxylate + pyruvate => (4R)-4-hydroxy-2-oxoglutarate
glyoxylate + pyruvate => (4r)-4-hydroxy-2-oxoglutarate