(2R,3S)-2,3-dimethylmalate = dimethylmaleate + H2O
(2r,3s)-2,3-dimethylmalate = dimethylmaleate + h2o
(2R,3S)-2,3-dimethylmalate = dimethylmaleate + H2O
(2r,3s)-2,3-dimethylmalate = dimethylmaleate + h2o