Synonyms: 6,8-Methano-7H-indeno[5'',4'':3',4']cyclohepta[1',2':4,5]furo[2,3-b]pyran-6b,7,8,14(9H,10aH)-tetrol,1,2,3b,4,6a,11a,11b,12,13,13a-decahydro-11b,13a-dimethyl-3-(1-methylethyl)-,(3ba,6aa,6ba,7b,8a,10aa,11ab,11bb,13aa,14R*)-(-)-; (-)-Erinacine E; Erinacin E