Daigremontianin

Daigremontianin
Names
	IUPAC name (1β,3β,5β,11α)-1,3,5-(ethylidynetris(oxy)-11,14-dihydroxy-12,19-dioxobufa-20,22-dienolide
Identifiers
CAS Number	98205-50-6 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	112839 ;
PubChem CID	127105;
CompTox Dashboard (EPA)	DTXSID40897532 ;
	InChI InChI=1S/C26H30O9/c1-22-15(13-3-4-18(28)32-11-13)6-8-26(22,31)16-5-7-24-10-14-9-17(34-23(2,33-14)35-24)25(24,12-27)19(16)20(29)21(22)30/h3-4,11-12,14-17,19-20,29,31H,5-10H2,1-2H3/t14-,15+,16+,17?,19+,20-,22-,23?,24?,25+,26-/m0/s1 Key: PHOLEJIIASOWOL-SQBSQXRJSA-N ; InChI=1/C26H30O9/c1-22-15(13-3-4-18(28)32-11-13)6-8-26(22,31)16-5-7-24-10-14-9-17(34-23(2,33-14)35-24)25(24,12-27)19(16)20(29)21(22)30/h3-4,11-12,14-17,19-20,29,31H,5-10H2,1-2H3/t14-,15+,16+,17?,19+,20-,22-,23?,24?,25+,26-/m0/s1 Key: PHOLEJIIASOWOL-SQBSQXRJBB;
	SMILES C[C@@]12[C@@](CC[C@@H]2C(C=C3)=COC3=O)(O)[C@]4([H])CC[C@]5(OC6(C)O7)C[C@@H]7C[C@@H](O6)[C@]5(C=O)[C@@]4([H])[C@H](O)C1=O; O=C\1O\C=C(/C=C/1)[C@@H]6[C@]5(C(=O)[C@@H](O)[C@@H]7[C@]3(C=O)C4(OC2(O[C@@H](CC3O2)C4)C)CC[C@H]7[C@@]5(O)CC6)C;
Properties
Chemical formula	C26H30O9
Molar mass	486.517 g·mol−1
Density	1.49 g/mL
Boiling point	695.2 °C (1,283.4 °F; 968.4 K)
	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

Daigremontianin is a bufadienolide. Bufadienolides are steroids and cardiac glycoside aglycones (meaning that they bind with carbohydrates to form cardiac glycosides) that are similar to cardenolides, differing only in the structure of the C-17 substituent on the D ring. This chemical has been found to be toxic in experiments on mice.[1][2] It is one of five bufadienolides that have been isolated from Kalanchoe daigremontiana.

Toxicity

Crassulaceans are one of the prime sources of bufadienolide cardiac glycosides (including daigremontianin) responsible for an estimated 33% of cattle mortalities related to plant poisoning in South Africa. Crassulacean bufadienolides cause cardiac poisoning, but repeated small doses cause a condition called cotyledonosis,[3] an intoxication affecting nervous and muscular systems of small animals, particularly, sheep in the Karoo area of South Africa.

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References

Wagner, H.; Fischer, M.; Lotter, H. (1985). "Neue Bufadienolide von Kalanchoe daigremontiana Hamet et Perr. (Crassulaceae)" [New Bufadienolides from Kalanchoe daigremontiana Hamet et Perr. (Crassulaceae)]. Zeitschrift für Naturforschung B (in German). 40 (9): 1226–1227. doi:10.1515/znb-1985-0920.
Wagner, H.; Lotter, H.; Fischer, M. (1986). "Die toxischen und sedierend wirkenden Bufadienolide von Kalanchoe daigremontiana Hamet et Perr" [The Toxic and Sedative Bufadienolides of Kalanchoe daigremontiana Hamet et Perr.]. Helvetica Chimica Acta (in German). 69 (2): 359–367. doi:10.1002/hlca.19860690215.
Botha, Christo (2016-03-16). "Potential Health Risks Posed by Plant-Derived Cumulative Neurotoxic Bufadienolides in South Africa". Molecules (Basel, Switzerland). 21 (3): 348. doi:10.3390/molecules21030348. ISSN 1420-3049. PMC 6273117. PMID 27102163.

External links

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[1] Wagner, H.; Fischer, M.; Lotter, H. (1985). "Neue Bufadienolide von Kalanchoe daigremontiana Hamet et Perr. (Crassulaceae)" [New Bufadienolides from Kalanchoe daigremontiana Hamet et Perr. (Crassulaceae)]. Zeitschrift für Naturforschung B (in German). 40 (9): 1226–1227. doi:10.1515/znb-1985-0920.

[2] Wagner, H.; Lotter, H.; Fischer, M. (1986). "Die toxischen und sedierend wirkenden Bufadienolide von Kalanchoe daigremontiana Hamet et Perr" [The Toxic and Sedative Bufadienolides of Kalanchoe daigremontiana Hamet et Perr.]. Helvetica Chimica Acta (in German). 69 (2): 359–367. doi:10.1002/hlca.19860690215.

[3] Botha, Christo (2016-03-16). "Potential Health Risks Posed by Plant-Derived Cumulative Neurotoxic Bufadienolides in South Africa". Molecules (Basel, Switzerland). 21 (3): 348. doi:10.3390/molecules21030348. ISSN 1420-3049. PMC 6273117. PMID 27102163.