Abstract

Chemical shift assignments are reported for some hopane triterpenoids variously oxygenated at C3, C6, C7, C15, C22 and/or C24. Substituent group effects are compared and correlated with a local symmetry axis. Revisions to a recently reported interpretation of the 13C n.m.r. spectrum of 7β-acetoxyhopan-22-ol (1c) are described.

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