145613-54-3 D(17a)-Homopregn-17-ene-17a-carboxylic acid, 4-ethyl-16,20-dihydroxy-12-((3-hydroxy-1-oxopentyl)oxy)-4,8-dimethyl-, gamma-lactone, (4beta,5alpha,12beta,16alpha,20R)- Phyllactone A Phyllactone B