(1R,4S)-menthone + NADP(+) <=> (R)-pulegone + NADPH + H(+)
(1r,4s)-menthone + nadp(+) <=> (r)-pulegone + nadph + h(+)
(1R,4S)-menthone + NADP(+) <=> (R)-pulegone + NADPH + H(+)
(1r,4s)-menthone + nadp(+) <=> (r)-pulegone + nadph + h(+)