1: 51.2 mg / Potato Dextrose Broth, glucose, NaCl, K2HPO4, pH 7.0 / 28 °C / Cunninghamella echinulata var. elegans (ATCC 9245) 2: 71 percent / 2,2,6,6-tetramethylpiperidine, BCl3 / CH2Cl2 / 24 h / Ambient temperature 3: 91 percent / K2CO3 / dimethylformamide / 1.5 h / 60 °C View Scheme

1: 74.5 percent / phosphorus oxychloride, pyridine / 2 h / 100 °C 2: hydrogen / PtO2 / methanol / 5 h / 23 °C View Scheme