(-)-

ent-1,7-Dimethyl-8-oxo-7β-gibba-1,3,4a(10a)-trien-10α-carbonsaeure

Gibbersaeure

(4bS)-8-Oxo-1.7-dimethyl-(4brH)-4b.5.6.7.8.10-hexahydro-9H-7t.9at-methano-benz[a]azulen-carbonsaeure-(10t)

ent-8-Oxo-1.7-dimethyl-gibbatrien-(1.3.4a(10a))-carbonsaeure-(10α)

gibberic acid