Main Reaction: tropine + phenylalanine >> (S)-hyoscyamine

Reference: PubMed ID: 16845528
Authors: Kaiser H, Richter U, Keiner R, Brabant A, Hause B, Dräger B
Title: Immunolocalisation of two tropinone reductases in potato (Solanum tuberosum L.) root, stolon, and tuber sprouts.
Published: 2006 Dec

tropine + phenylalanine --> (S)-hyoscyamine