benzyl (2R,3S)-2-methyl-3-hydroxybutanoate + NADP(+) <=> benzyl 2-methyl-3-oxobutanoate + NADPH + H(+)
benzyl (2r,3s)-2-methyl-3-hydroxybutanoate + nadp(+) <=> benzyl 2-methyl-3-oxobutanoate + nadph + h(+)
benzyl (2R,3S)-2-methyl-3-hydroxybutanoate + NADP(+) <=> benzyl 2-methyl-3-oxobutanoate + NADPH + H(+)
benzyl (2r,3s)-2-methyl-3-hydroxybutanoate + nadp(+) <=> benzyl 2-methyl-3-oxobutanoate + nadph + h(+)