label: (R)-carnitine + NADPH + O2 + H(+) <=> (3R)-3-hydroxy-4-oxobutanoate + trimethylamine + NADP(+) + H2O
label_lc: (r)-carnitine + nadph + o2 + h(+) <=> (3r)-3-hydroxy-4-oxobutanoate + trimethylamine + nadp(+) + h2o