Stereochemistry of isoflavone reduction during pterocarpan biosynthesis: an investigation using deuterium nuclear magnetic resonance spectroscopy
Abstract
2 H N.m.r. spectroscopy has been employed to establish that in fenugreek seedlings, (6aR, 11aR)-demethylhomopterocarpin is synthesised from 2′,7-dihydroxy-4′-methoxyisoflavone via an overall trans addition of hydrogen to the double bond.