114687-82-0 Butanoic acid, 3-methyl-, (1,4a,5,6,7,7a-hexahydro-6-hydroxy-7-methyl-1-(3-methyl-1-oxobutoxy)cyclopenta(c)pyran-4-yl)methyl ester, (1S-(1alpha,4aalpha,6alpha,7alpha,7aalpha))- Nardostachin