Macrophyllic acid

4b,4'b,5,5',6,6',7,7',8a,8'a,9,9',10,10'-Tetradecahydro-2,2'-dihydroxy-4b,4'b,8,8'-tetramethyl-1,1'-bis(1-methylethyl)-3,3'-biphenanthrene-8,8'-dicarboxylic acid

4b,4'b,5,5',6,6',7,7',8,8',8a,8'a,9,9',10,10'-Hexadecahydro-2,2'-dihydroxy-4b,4'b,8,8'-tetramethyl-1,1'-bis(1-methylethyl)-3,3'-biphenanthrene-8,8'-dicarboxylic acid