抄録
The sapogenol constituents of two Theaceous plant materials : seeds of Camellia sasanqua THUNB. and leaves of Ternstroemia japonica THUNB., have been examined in connection with the previous investigation on tea seeds sapogenols. In addition to eight known oleanane triterpenoids : dihydropriverogenin A (II), camelliagenin B (III), A1-barrigenol (IV), camelliagenin C (V), barringtogenol C (VI), camelliagenin D (VII), theasapogenol E (VIII), and theasapogenol A (IX), a new sapogenol designated as 22α-hydroxy-erythrodiol (I) has been isolated from the former seeds while oleanolic acid, primulagenin A (XIV), dihydropriverogenin A, and A1-barrigenol have been obtained from the latter leaves. Isolation of primulagenin A from the Theaceous plant material seems to be unprecedented.
