ヌカ油中のフェルラ酸エステルの研究 (第7報)

3種の新トリテルペンの化学構造

抄録

In order to confirm chemical structure of three components entitled, authors invenstigated mass and NMR spectra.
As a result, it was found that they are tetracyclic triterpene alcohols, which only differ in the character of their side chains at 20-C of cycloartanol. In comparing with the reference compound, it was confirmed that X component has an OH-group at 25-carbon, Y has CH₃CH₂O-group at 25-C and Z has CH₃-and CH₃O-groups at 24-C.
From those observation, it is reasonable to define X as 25-hydroxy cycloartanol, Y as 25-ethoxycycloartanol and Z as 24-methyl-24-methoxy cycloartanol.