Loganin

Names
IUPAC name Methyl (1S,4aS,6S,7R,7aS)-1-(β-D-glucopyranosyloxy)-6-hydroxy-7-methyl-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylate
Systematic IUPAC name Methyl (1S,4aS,6S,7R,7aS)-6-hydroxy-7-methyl-1-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-4-carboxylate
Other names Loganoside
Identifiers
CAS Number	18524-94-2 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:15771
ChemSpider	79111
ECHA InfoCard	100.038.529
EC Number	242-398-0
KEGG	C01433
PubChem CID	87691
UNII	H7WJ16Q93C Y
CompTox Dashboard (EPA)	DTXSID60939948
InChI InChI=1S/C17H26O10/c1-6-9(19)3-7-8(15(23)24-2)5-25-16(11(6)7)27-17-14(22)13(21)12(20)10(4-18)26-17/h5-7,9-14,16-22H,3-4H2,1-2H3/t6-,7+,9-,10+,11+,12+,13-,14+,16-,17-/m0/s1 Key: AMBQHHVBBHTQBF-UOUCRYGSSA-N InChI=1/C17H26O10/c1-6-9(19)3-7-8(15(23)24-2)5-25-16(11(6)7)27-17-14(22)13(21)12(20)10(4-18)26-17/h5-7,9-14,16-22H,3-4H2,1-2H3/t6-,7+,9-,10+,11+,12+,13-,14+,16-,17-/m0/s1 Key: AMBQHHVBBHTQBF-UOUCRYGSBL
SMILES C[C@H]1[C@H](C[C@H]2[C@@H]1[C@@H](OC=C2C(=O)OC)O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O
Properties
Chemical formula	C17H26O10
Molar mass	390.385 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Loganin is one of the best-known of the iridoid glycosides. It is named for the Loganiaceae, having first been isolated from the seeds of a member of that plant family, namely those of Strychnos nux-vomica. It also occurs in Alstonia boonei (Apocynaceae),^[1] a medicinal tree of West Africa and in the medicinal/entheogenic shrub Desfontainia spinosa (Columelliaceae) native to Central America and South America.

Loganin is formed from loganic acid by the enzyme loganic acid O-methyltransferase (LAMT). Loganin then becomes a substrate for the enzyme secologanin synthase (SLS) to form secologanin, a secoiridoid monoterpene found as part of ipecac and terpene indole alkaloids.