diethyl (2R,3R)-2-methyl-3-hydroxysuccinate + NADP(+) <=> diethyl 2-methyl-3-oxosuccinate + NADPH + H(+)
diethyl (2r,3r)-2-methyl-3-hydroxysuccinate + nadp(+) <=> diethyl 2-methyl-3-oxosuccinate + nadph + h(+)
diethyl (2R,3R)-2-methyl-3-hydroxysuccinate + NADP(+) <=> diethyl 2-methyl-3-oxosuccinate + NADPH + H(+)
diethyl (2r,3r)-2-methyl-3-hydroxysuccinate + nadp(+) <=> diethyl 2-methyl-3-oxosuccinate + nadph + h(+)