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3D model (JSmol)
Molar mass 414.76 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Cucurbitane is a chemical compound with formula C
(CAS number 65441-59-0). It is a polycyclic hydrocarbon, specifically a triterpene. It is an isomer of lanostane (specifically 19(10→9β)abeo-lanostane), from which it differs by the formal shift of a methyl group (carbon number 19) from the 10 to the 9β position in the standard steroid numbering scheme.[1][2]

The name is applied to two stereoisomers, distinguished by the prefixes 5α- and , which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme).[1]


Natural compounds[edit]

Compounds with the basic cucurbitane skeleton are found in many plants, and some are important phytopharmaceuticals,[3] Natural cucurbitane-related compounds include:



See also[edit]


  1. ^ a b IUPAC Commission on the Nomenclature of Organic Chemistry and IUPAC-IUB Commission on Biochemical Nomenclature (1969), The Nomenclature of Steroids — Revised Tentative Rules. European Journal of Biochemistry, volume 10, 1-19
  2. ^ Satish Kumar and Raj Kumar (1991), Dictionary of Biochemistry. Anmol Publications, India
  3. ^ a b c d e f g h i Chen, J. C.; Chiu, M. H.; Nie, R. L.; Cordell, G. A.; Qiu, S. X. (2005). "Cucurbitacins and cucurbitane glycosides: Structures and biological activities". Natural Product Reports. 22 (3): 386–399. doi:10.1039/B418841C. PMID 16010347. 
  4. ^ a b c d e f Ramalhete, C. T.; Mansoor, T. A.; Mulhovo, S.; Molnár, J.; Ferreira, M. J. U. (2009). "Cucurbitane-Type Triterpenoids from the African PlantMomordica balsamina". Journal of Natural Products. 72 (11): 2009–2013. doi:10.1021/np900457u. PMID 19795842. 
  5. ^ M. M. Lolitkar and M. R. Rajarama Rao (1962), "Note on a Hypoglycaemic Principle Isolated from the fruits of Momordica charantia". Journal of the University of Bombay, volume 29, pages 223-224
  6. ^ Olaniyi, A. A. (1975). "A neutral constituent of Momordica foetida". Lloydia. 38 (4): 361–362. PMID 1186439. 
  7. ^ a b Akihisa, T.; Higo, N.; Tokuda, H.; Ukiya, M.; Akazawa, H.; Tochigi, Y.; Kimura, Y.; Suzuki, T.; Nishino, H. (2007). "Cucurbitane-Type Triterpenoids from the Fruits of Momordica charantia and Their Cancer Chemopreventive Effects". Journal of Natural Products. 70 (8): 1233–1239. doi:10.1021/np068075p. PMID 17685651. 
  8. ^ a b c Da-Cheng Wang, Hong-Yu Pan, Xu-Ming Deng, Hua Xiang, Hui-Yuan Gao, Hui Cai, and Li-Jun Wu (2007), "Cucurbitane and hexanorcucurbitane glycosides from the fruits of Cucurbita pepo cv dayangua". Journal of Asian Natural Products Research, volume 9, issue 6, pages 525–529.
  9. ^ a b c Chen, J. C.; Zhang, G. H.; Zhang, Z. Q.; Qiu, M. H.; Zheng, Y. T.; Yang, L. M.; Yu, K. B. (2008). "Octanorcucurbitane and Cucurbitane Triterpenoids from the Tubers ofHemsleya endecaphyllawith HIV-1 Inhibitory Activity". Journal of Natural Products. 71 (1): 153–155. doi:10.1021/np0704396. PMID 18088099. 
  10. ^ Jian-Wen Tan, Ze-Jun Dong, Zhi-Hui Ding and Ji-Kai Liu (2002), "Lepidolide, a Novel Seco-ring-A Cucurbitane Triterpenoid from Russula lepida (Basidiomycetes)". Zeitschrift für Naturforschung Series C, volume 57C issue 11/12, pages 963-965.
  11. ^ Chen, J. C.; Liu, W. Q.; Lu, L.; Qiu, M. H.; Zheng, Y. T.; Yang, L. M.; Zhang, X. M.; Zhou, L.; Li, Z. R. (2009). "Kuguacins F–S, cucurbitane triterpenoids from Momordica charantia". Phytochemistry. 70 (1): 133–140. doi:10.1016/j.phytochem.2008.10.011. PMID 19041990. 
  12. ^ J. C. Chen, R. R. Tian, M. H. Qiu, L. Lu, Y. T. Zheng, Z. Q. Zhang (2008), "Trinorcucurbitane and cucurbitane triterpenoids from the roots of Momordica charantia." Phytochemistry, volume 69, pages 1043–1048
  13. ^ Chen, J. C.; Lu, L.; Zhang, X. M.; Zhou, L.; Li, Z. R.; Qiu, M. H. (2008). "Eight New Cucurbitane Glycosides, Kuguaglycosides A – H, from the Root ofMomordica charantia L". Helvetica Chimica Acta. 91 (5): 920. doi:10.1002/hlca.200890097. 
  14. ^ Midori Takasaki, Takao Konoshima, Yuji Murata, Masaki Sugiura, Hoyoku Nishino, Harukuni Tokuda, Kazuhiro Matsumoto, Ryoji Kasai, and Kazuo Yamasaki (2003) "Anticarcinogenic activity of natural sweeteners, cucurbitane glycosides, from Momordica grosvenori". Cancer Letters, volume 198, pages 37–42
  15. ^ a b Sabira Begum, Mansour Ahmed, Bina S. Siddiqui, Abdullah Khan, Zafar S. Saify, and Mohammed Arif (1997), "Triterpenes, A Sterol and a Monocyclic Alcohol From Momordica Charantia." Phytochemistry, volume 44, issue 7, pages 1313-1320
  16. ^ Majekodunmi Fatope, Yoshio Takeda, Hiroyasu Yamashita, Hikaru Okabe, and Tatsuo Yamauchi (1990), "New cucurbitane trirterpenoids from Momordica charantia." Journal of Natural Products, volume 53, issue 6, pages 1491-1497.
  17. ^ Daniel Bisrat Mekuria, Takehiro Kashiwagi, Shin-ichi Tebayashi, and Chul-Sa Kim (2006)"Cucurbitane Glucosides from Momordica charantia Leaves as Oviposition Deterrents to the Leafminer, Liriomyza trifolii". Z. Naturforsch., volume 61c, pages 81–86
  18. ^ a b c d e Liu, J. Q.; Chen, J. C.; Wang, C. F.; Qiu, M. H. (2009). "New Cucurbitane Triterpenoids and Steroidal Glycoside from Momordica charantia". Molecules. 14 (12): 4804–4813. doi:10.3390/molecules14124804. PMID 20032860. 
  19. ^ Harinantenaina, L.; Tanaka, M.; Takaoka, S.; Oda, M.; Mogami, O.; Uchida, M.; Asakawa, Y. (2006). "Momordica charantia Constituents and Antidiabetic Screening of the Isolated Major Compounds". Chemical & Pharmaceutical Bulletin. 54 (7): 1017. doi:10.1248/cpb.54.1017. 
  20. ^ Liu, J. Q.; Chen, J. C.; Wang, C. F.; Qiu, M. H. (2010). "One new cucurbitane triterpenoid from the fruits of Momordica charantia". European Journal of Chemistry. 1 (4): 294. doi:10.5155/eurjchem.1.4.294-296.131. 
  21. ^ Si Jian-yong, Chen Di-hua, Chang Qi and Shen Lian-gang (1996), Isolation and Determination of Cucurbitane-Glycosides from Fresh Fruits of Siraitia Grosvenorii. Journal of Integrative Plant Biology, volume 38, issue 6, pages, 489–494
  22. ^ a b Chen, C. R.; Liao, Y. W.; Wang, L.; Kuo, Y. H.; Liu, H. J.; Shih, W. L.; Cheng, H. L.; Chang, C. I. (2010). "Cucurbitane Triterpenoids from Momordica charantia and Their Cytoprotective Activity in tert-Butyl Hydroperoxide-Induced Hepatotoxicity of HepG2 Cells". Chemical & Pharmaceutical Bulletin. 58 (12): 1639. doi:10.1248/cpb.58.1639. 
  23. ^ a b c d e f g h Mulholland, D. A.; Sewram, V.; Osborne, R.; Pegel, K. H.; Connolly, J. D. (1997). "Cucurbitane triterpenoids from the leaves of Momordica foetida". Phytochemistry. 45 (2): 391. doi:10.1016/S0031-9422(96)00814-X. 
  24. ^ Gabriella Spengler, Cátia Ramalhete, Marta Martins, Ana Martins, Julianna Serly, Miguel Viveiros, Joseph Molnár, Noélia Duarte, Silva Mulhovos, Maria-José U. Ferreira, Leonard Amaral (2010), "Evaluation of Cucurbitane-type Triterpenoids from Momordica balsamina on P-Glycoprotein (ABCB1) by Flow Cytometry and Real-time Fluorometry", Anticancer Research, volume 30, pages 4867-4871