Tetracyclic Triterpenoids

Inotodiol activates p53 signaling pathway, inhibits MMP-2/9, and exhibits antitumor activity in cancer cell HeLa. Inotodiol inhibits the generation of ROS and exhibits antioxidant and neuroprotective effects. Inotodiol inhibits the activation of MAPK and NF-κB signaling pathway, and exhibits anti-inflammatory activity. Inotodiol inhibits TLR-4 mediated TNF-α production (IC₅₀s in BMMC and BMDM is 0.7 μM and 3.0 μM), inhibits the degranulation in mast cell, exhibits anti-allergic activity. Inotodiol is orally active.

11-Oxomogroside IV A (compound 12) is a cucurbitane triterpene glycoside isolated from unripe fruits of Luo Han Guo. 11-Oxomogroside IV A has anti-tumor effects and is cytotoxic to tumor cells SMMC-772 (IC₅₀: 288 μg/mL).

3β-Hydroxylanosta-8,24-dien-21-al is a lanostane-type triterpene. 3β-Hydroxylanosta-8,24-dien-21-al can inhibit the tumor promotion, reducing the percentage of mice bearing papillomas.

5α,6α-Epoxystigmasterol is a sterol epoxide. 5α,6α-Epoxystigmasterol serves as a precursor of brassinosteroidal compounds.

16S,22S-Dihydroxycholesterol is a stereospecific dihydroxylated cholesterol and also a key intermediate in the biosynthesis of Diosgenin (HY-N0177) in plants.

Chondrillasterol is a sterol that can be isolated from Vernonia adoensis. Chondrillasterol exhibits antibacterial activity. Chondrillasterol inhibits growth of Staphylococcus aureus, Klebsiella pneumoniae, and Pseudomonas aeruginosa. Chondrillasterol inhibits formation of bacterial biofilms. Chondrillasterol can be used for the research of bacterial infections.

Caudatin 3-O-β-D-glucopyranosyl-(1→4)-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside (compound 6) is a C-21 steroidal glycoside that can be isolated from the roots of Cynanchum otophyllum and Cynanchum caudatum.

Betulatriterpene C is a dammarane triterpene found in the glandular trichome exudates of Ibicella lutea.

12β-Hydroxycimigenol (Compound 1a) is a cycloartane-type triterpene aglycone that can be isolated from the aerial parts of Cimicifuga simplex.

5,6-Didehydroginsenoside Rb1 is a dammarane-type saponin. 5,6-Didehydroginsenoside Rb1 can be isolated from the dried roots of Panax notoginseng.

23-O-Acetylcimigenol-3-O-α-L-arabinopyranside (Compound 1) is a triterpene glycoside found in the rhizomes of Cimicifuga heracleifolia.23-O-Acetylcimigenol-3-O-α-L-arabinopyranside does not inhibit the classical pathway of the complement system.

11-Oxomogroside I A1 is a cucurbitane-type triterpenoid glycoside and also an EBV-EA inhibitor. 11-Oxomogroside I A1 exerts 100% inhibitory effect on the induction of EBV-EA. 11-Oxomogroside I A1 can be used for cancer research.

Notoginsenoside A (Compound 6) is a dammarane-type triterpene oligoglycoside found in the roots of Panax quinquefolium L..

Doliroside A is an Aβ42-binding agent with an IC₅₀ of 26.57 μM for Aβ42. Doliroside A binds to Aβ42 nuclei and oligomers to form stable complexes, suppresses Aβ42 fibrillation, and redirects Aβ42 into off-pathway, amorphous oligomers. Doliroside A can be used for the research of alzheimer’s disease (ad).

(22E,24R)-23-Methylergosta-7,22-diene-3β,5α,6β-triol (Compound 7) is an Ergosteroid. (22E,24R)-23-Methylergosta-7,22-diene-3β,5α,6β-triol can be isolated from Penicillium herquei. (22E,24R)-23-Methylergosta-7,22-diene-3β,5α,6β-triol exhibits no obvious inhibitory activities against NO production induced by LPS.

(23S,24R)-Dimethylcholest-7-ene-3b,5a,6b-triol (compound 3) is a cytotoxin that can be found in the marine bryozoan Bugula neritina. (23S,24R)-Dimethylcholest-7-ene-3b,5a,6b-triol shows weak cytotoxicity against SGC7901 cell with an IC₅₀ value of 111.8 μM. (23S,24R)-Dimethylcholest-7-ene-3b,5a,6b-triol can be used for the research of hepatocellular carcinoma, gastric carcinoma.

Noueloside D is a natural diterpene.

Creticoside A is a natural diterpene.

Periplocoside H1 is a natural product that can be found in Gangliu.

(22E,24R)-Ergosta-7,9(11),22-triene-3β,5α,6β-triol is a natural product that can be found in Claviceps purpurea.