1-Naphthaleneheptanoic acid, 1,2,3,7,8,8a-hexahydro-beta,delta,3-trihydroxy-2-methyl-8-((2S)-2-methyl-1-oxobutoxy)-, (betaR,deltaR,1S,2R,3S,8S,8aR)- 81131-74-0