114577-01-4 6,7-Epoxycanrenone 6-alpha,7-alpha-Epoxy-17-alpha-hydroxy-3-oxopregn-4-ene-21-carboxylic acid gamma-lactone 6-alpha,7-alpha-Epoxy-canrenone BRN 5136576 Pregn-4-ene-21-carboxylic acid, 6,7-epoxy-17-hydroxy-3-oxo, gamma-lactone, (6-alpha,7-alpha,17-alpha)- Pregn-4-ene-21-carboxylic acid, 6,7-epoxy-17-hydroxy-3-oxo-,gamma-lactone, (6alpha,7alpha,17alpha)-