3-Aza-A-homopregnan-21-oic acid, 1,4-epoxy-16-hydroxy-, gamma-lactone, (1-alpha,4-alpha-5-beta,16-beta)- 4-27-00-06565 (Beilstein Handbook Reference) 6384-73-2 BRN 0038144 Samandaridin Samandaridine