Rotenoid
{{Short description|Naturally occurring substance}}
Rotenoids are naturally occurring substances containing a cis-fused tetrahydrochromeno[3,4-b]chromene nucleus.[http://www.chemicool.com/definition/rotenoids.html Rotenoids on www.chemicool.com] Many have insecticidal and piscicidal activity, such as the prototypical member of the family, rotenone. Rotenoids are related to the isoflavones.
Natural occurrences
Many plants in the subfamily Faboideae contain rotenoids. Rotenoids can be found in Lonchocarpus sp. Deguelin and tephrosin can be found in Tephrosia vogelii.{{Cite journal|doi=10.1016/S0031-9422(00)90838-0|title=Production of rotenoids by heterotrophic and photomixotrophic cell cultures of tephrosia vogelii|year=1993|last1=Lambert|first1=Nadine|last2=Trouslot|first2=Marie-France|last3=Nef-Campa|first3=Claudine|last4=Chrestin|first4=Hervé|journal=Phytochemistry|volume=34|issue=6|pages=1515–1520}} 6'-O-β-D-glucopyranosyl-12a-hydroxydalpanol can be found in the fruits of Amorpha fruticosa.{{Cite journal|doi=10.1007/s10616-006-9040-5|title=Effect of new rotenoid glycoside from the fruits of Amorpha fruticosa LINNE on the growth of human immune cells|year=2007|last1=Lee|first1=Hak Ju|last2=Kang|first2=Ha Young|last3=Kim|first3=Cheol Hee|last4=Kim|first4=Hyo Sung|last5=Kwon|first5=Min Chul|last6=Kim|first6=Sang Moo|last7=Shin|first7=Il Shik|last8=Lee|first8=Hyeon Yong|journal=Cytotechnology|volume=52|issue=3|pages=219–26|pmid=19002880|pmc=3449409}} Elliptol, 12-deoxo-12alpha-methoxyelliptone, 6-methoxy-6a,12a-dehydrodeguelin, 6a,12a-dehydrodeguelin, 6-hydroxy-6a,12a-dehydrodeguelin, 6-oxo-6a,12a-dehydrodeguelin and 12a-hydroxyelliptone can be isolated from the twigs of Millettia duchesnei.{{cite journal|doi=10.1016/j.phytochem.2007.05.038|pmid= 17640692|title=Rotenoid derivatives and other constituents of the twigs of Millettia duchesnei|year=2008|last1=Ngandeu|first1=François|last2=Bezabih|first2=Merhatibeb|last3=Ngamga|first3=Dieudonne|last4=Tchinda|first4=Alembert T.|last5=Ngadjui|first5=Bonaventure T.|last6=Abegaz|first6=Berhanu M.|last7=Dufat|first7=Hanh|last8=Tillequin|first8=François|journal=Phytochemistry|volume=69|pages=258–63|issue=1}} Deguelin, dehydrodeguelin, rotenol, rotenone, tephrosin and sumatrol can be found in Indigofera tinctoria.{{Cite journal|title= In vivo and in vitro investigations on rotenoids from Indigofera tinctoria and their bioefficacy against the larvae of Anopheles stephensi and adults of Calmlosobruchus chinensis|last1= Kamal |first1=R. |last2= Mangla|first2= M.|journal= Journal of Biosciences|year= 1993|volume= 18|pages=93–101|doi=10.1007/BF02703041|s2cid= 28058102 }} 6aα,12aα-12a-hydroxyelliptone can be found in the stems of Derris trifoliata.{{Cite journal|pmid=15229812|year=2004|last1=Ito|first1=C|last2=Itoigawa|first2=M|last3=Kojima|first3=N|last4=Tan|first4=HT|last5=Takayasu|first5=J|last6=Tokuda|first6=H|last7=Nishino|first7=H|last8=Furukawa|first8=H|title=Cancer chemopreventive activity of rotenoids from Derris trifoliata|volume=70|issue=6|pages=585–8|doi=10.1055/s-2004-815447|journal=Planta Medica}} Amorphol, a rotenoid bioside, can be isolated from plants of the genus Amorpha.{{Cite journal|doi=10.1007/BF00563810|title=Structure of amorphol — A rotenoid bioside from plants of the genus Amorpha|year=1974|last1=Kasymov|first1=A. U.|last2=Kondratenko|first2=E. S.|last3=Abubakirov|first3=N. K.|journal=Chemistry of Natural Compounds|volume=10|issue=4|pages=470–473|s2cid=4821283}} Deguelin, rotenone, elliptone and α-toxicarol can be found in the seeds of Lonchocarpus salvadorensis.{{Cite journal|doi=10.1016/0031-9422(85)80019-4|title=Rotenoids of Lonchocarpus salvadorensis: Their effectiveness in protecting seeds against bruchid predation|year=1985|last1=Birch|first1=Nicholas|last2=Crombie|first2=Leslie|last3=Crombie|first3=W.Mary|journal=Phytochemistry|volume=24|issue=12|pages=2881–2883}} Clitoriacetal, stemonacetal, 6-deoxyclitoriacetal, 11-deoxyclitoriacetal, 9-demethylclitoriacetal and stemonal can be isolated from Clitoria fairchildiana.{{Cite journal|doi=10.1002/ptr.807|pmid=11933150|title=Antiinflammatory activity of rotenoids from Clitoria fairchildiana|year=2002|last1=Pereira Da Silva|first1=Bernadete|last2=Paz Parente|first2=José|journal=Phytotherapy Research|volume=16|pages=87–88}}
Rotenoids can also be found in the plant family Nyctaginaceae. Mirabijalone A, B, C and D, 9-O-methyl-4-hydroxyboeravinone B, boeravinone C and F, and 1,2,3,4-tetrahydro-1-methylisoquinoline-7,8-diol) can be isolated from the roots of Mirabilis jalapa.{{Cite journal|doi=10.1002/1522-2675(200208)85:8<2342::AID-HLCA2342>3.0.CO;2-S|title=New Rotenoids from Roots of Mirabilis jalapa|year=2002|last1=Yi-Fen|first1=Wang|last2=Ji-Jun|first2=Chen|last3=Yan|first3=Yang|last4=Yong-Tang|first4=Zheng|last5=Shao-Zong|first5=Tang|last6=Shi-De|first6=Luo|journal=Helvetica Chimica Acta|volume=85|issue=8|pages=2342–2348}} Boeravinones G and H are two rotenoids isolated from Boerhavia diffusa.{{Cite journal|pmid=17341062|year=2007|last1=Ahmed-Belkacem|first1=A|last2=MacAlou|first2=S|last3=Borrelli|first3=F|last4=Capasso|first4=R|last5=Fattorusso|first5=E|last6=Taglialatela-Scafati|first6=O|last7=Di Pietro|first7=A|title=Nonprenylated rotenoids, a new class of potent breast cancer resistance protein inhibitors|volume=50|issue=8|pages=1933–8|doi=10.1021/jm061450q|journal=Journal of Medicinal Chemistry}} Abronione and boeravinone C can be found in the desert annual Abronia villosa.{{Cite journal|pmc=3099468|year=2011|last1=Starks|first1=CM|last2=Williams|first2=RB|last3=Norman|first3=VL|last4=Lawrence|first4=JA|last5=Goering|first5=MG|last6=O'Neil-Johnson|first6=M|last7=Hu|first7=JF|last8=Rice|first8=SM|last9=Eldridge|first9=GR|title=Abronione, a rotenoid from the desert annual Abronia villosa|volume=4|issue=2|pages=72–74|doi=10.1016/j.phytol.2010.08.004|journal=Phytochemistry Letters|pmid=21617767}} In 2015, a new rotenoid called crocetenone was extracted from the rhizome of Iris crocea.{{cite journal |first1=G.A. |last1=Bhat |first2=F. |last2=Mir |first3=A.S. |last3=Shawl |first4=B.A. |last4=Ganai |first5=A.N. |last5=Kamili |first6=A. |last6=Masood |first7=M.A. |last7=Tantry |date=March 2015 |title=Crocetenone, a new rotenoid with an unusual trans-fused ring system from Iris crocea |journal=Nat Prod Commun |volume=10 |issue=3 |pages=503–4 |pmid=25924539}}