(20) 3beta,16beta dihydroxy 5 pregnen 20,16 carbolactone 1 3beta hydroxy 5 androsterone 1 Antibiotics 1 Chemistry, Pharmaceutical 1 Glycosides 1 Hexoses 1 Hydrazones 1 Magnetic Resonance Spectroscopy 1 StereoisomerismPB - Birkhäuser-Verlag 1 alkaloid derivative 1 androsterone 1 antibiotic agent 1 article 1 catabolism 1 chemistry 1 cis isomer 1 conference paper 1 correlation analysis 1 diosgenin 1 extraction 1 fruit 1 glycoside 1 hexose 1 hydrazone derivative 1 hydroxyl group 1 lactone 1 molecular dynamics 1 molecular interaction 1 molecular mechanics 1 nuclear magnetic resonance spectroscopy 1