The non-enzymatic decarboxylation of diketosuccinate and oxaloglycolate (dihydroxyfumarate).
D003653:Decarboxylation; D005650:Fumarates; D008298:Maleates / Q000378:metabolism*; D013386:Succinates / Q000378:metabolism*
D005650:Fumarates; D008298:Maleates; D013386:Succinates; C005998:dihydroxyfumarate
MALEATES/metabolism; SUCCINATES/metabolism