Intybin

Lactucopicrin

Names
Preferred IUPAC name (4-Hydroxy-6-methyl-3-methylidene-2,7-dioxo- 4,5,9a,9b-tetrahydro-3aH-azuleno[8,7-b]furan- 9-yl)methyl 2-(4-hydroxyphenyl)acetate
Systematic IUPAC name {4-Hydroxy-6-methyl-3-methylidene-2,7-dioxo- 2H,3H,3aH,4H,5H,7H,8H,9bH-azuleno[4,5-b] furan-9-yl}methyl 2-(4-hydroxyphenyl)acetate
Other names {4-Hydroxy-6-methyl-3-methylidene-2,7-dioxo- 3aH,4H,5H,8H,9bH-azuleno[4,5-b]furan-9-yl} methyl 2-(4-hydroxyphenyl)acetate Intybin
Identifiers
CAS Number	6466-74-6 (3aR,4S,9bS)
3D model (JSmol)	Interactive image
ChemSpider	152483 (3aR,4S,9bS)
MeSH	Intybin
PubChem CID	174863 (3aR,4S,9bS)
InChI InChI=1S/C23H22O7/c1-11-7-16(25)20-12(2)23(28)30-22(20)21-14(9-17(26)19(11)21)10-29-18(27)8-13-3-5-15(24)6-4-13/h3-6,9,16,20-22,24-25H,2,7-8,10H2,1H3/t16-,20+,21-,22-/m0/s1 Key: QCDLLIUTDGNCPO-AEMJNJESSA-N InChI=1/C23H22O7/c1-11-7-16(25)20-12(2)23(28)30-22(20)21-14(9-17(26)19(11)21)10-29-18(27)8-13-3-5-15(24)6-4-13/h3-6,9,16,20-22,24-25H,2,7-8,10H2,1H3/t16-,20+,21-,22-/m0/s1 Key: QCDLLIUTDGNCPO-AEMJNJESBM
SMILES CC1=C2[C@@H]([C@@H]3[C@@H]([C@H](C1)O)C(=C)C(=O)O3)C(=CC2=O)COC(=O)Cc4ccc(cc4)O
Properties
Chemical formula	C23H22O7
Molar mass	410.42 g·mol−1
Pharmacology
Routes of administration	Oral, Smoked
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

4,5,9a,9b-tetrahydro-3aH-azuleno[8,7-b]furan-

2H,3H,3aH,4H,5H,7H,8H,9bH-azuleno[4,5-b]

3aH,4H,5H,8H,9bH-azuleno[4,5-b]furan-9-yl}
methyl 2-(4-hydroxyphenyl)acetate

Lactucopicrin (Intybin) is a bitter substance that has a sedative and analgesic effect, acting on the central nervous system. It is a sesquiterpene lactone, and is a component of lactucarium, derived from the plant Lactuca virosa (wild lettuce), as well as being found in some related plants such as Cichorium intybus. It is also found in dandelion coffee.

As well as their traditional use as sedatives and analgesics, these plants have also been used as antimalarials, and both lactucin and lactucopicrin have demonstrated antimalarial effects in vitro. Lactucopicrin has also been shown to act as an acetylcholinesterase inhibitor.