(E)-sinapoyltartronate + CoA => hydroxymalonate + (E)-sinapoyl-CoA
(e)-sinapoyltartronate + coa => hydroxymalonate + (e)-sinapoyl-coa
(E)-sinapoyltartronate + CoA => hydroxymalonate + (E)-sinapoyl-CoA
(e)-sinapoyltartronate + coa => hydroxymalonate + (e)-sinapoyl-coa