Either steroidal sapogenins or steroidal alkaloids have been isolated from the unripe fruits of Solanum hazenii, S, meridense, S. scorpioideum, S. sycophanta and S. torvum. Chlorogenone {(25R)-5α-spirostane-3,6-dione} and its 25S-epimer, neochlorogenone, were extracted from S. torvum; this is the first record these compounds as natural products. © 1991.