1.1.1.207 (+)-isomenthone + NADPH - 1.1.1.207 (-)-menthone + NADPH - 1.1.1.207 (-)-menthone + NADPH + H+ menthone reduction is the physiological reaction of enzyme MMR 1.1.1.207 (1R)-menthone + NADPH + H+ ? 1.1.1.207 additional information primary monoterpene biosynthesis pathway, overview