Synfacts, Table of Contents Synfacts 2012; 8(1): 0011DOI: 10.1055/s-0031-1289921 Synthesis of Natural Products and Potential Drugs © Georg Thieme Verlag Stuttgart · New York Synthesis of (+)-Yohimbine Contributor(s): Steven V. Ley , Sean Newton Recommend Article Abstract Buy Article Key words Key wordsPictet–Spengler reaction - phosphoric acid - Diels–Alder reaction Full Text