| Member | Definition | Role |
|---|
| conessine | A steroid alkaloid that is con-5-enine substituted by a N,N-dimethylamino group at position 3. It has been isolated from the plant species of the family Apocynaceae. | conessine |
| dehydrotomatine | A steroid alkaloid that consists of tomatine which has undergone formal dehydrogenation across positions 5 and 6. Found in tomatoes. | 5,6-dehydrotomatine |
| esculeoside a | A steroid saponin that is spirosolane-3,23,27-triol in which the hydroxy group at position 23 is acetylated and the hydroxy groups at positions 3 and 27 are glycosylated by lycotetraosyl and a beta-D-glucopyranosyl moieties respectively. Isolated from the fruits of Lycopersicon esculentum, it exhibits cytotoxic activity. | esculeoside A |
| solasodine | An oxaspiro compound and steroid alkaloid sapogenin with formula C27H43NO2 found in the Solanum (nightshade) family. It is used as a precursor in the synthesis of complex steroidal compounds such as contraceptive pills. | solasodine |
| tomatine | A steroid alkaloid that is tomatidine in which the hydroxy group at position 3 is linked to lycotetraose, a tetrasaccharide composed of two units of D-glucose, one unit of D-xylose, and one unit of D-galactose. | tomatine |