[1theta-(1alpha,4abeta,10aalpha)]--methylethyl);13-isopropylpodocarpa-8,11,13-trien-15-oicacid;13-trien-15-oicacid,13-isopropyl-podocarpa-11;1-phenanthrenecarboxylicacid,1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1;dehydro-abieticaci;DEHYDROABIETIC AC