(5S,9S,10S)-t-butyl 13-azalabda-8(17)-en-15-oate

(13RS)-14,15-dinorlabd-8(17)-en-13-ol

podocarpa-8,11,13-trien-12,13-diol

Bisnor-14,15 labden-8(20)

(4aS,8aS)-5,5,8a-Trimethyl-1,2,3,4,4a,5,6,7,8,8a-decahydro-cyclobuta[a]naphthalene