Mitragynine pseudoindoxyl

Mitragynine pseudoindoxyl is a rearrangement product of 7-hydroxymitragynine.[1] It is an analgesic being more potent than morphine.[2][3]

Mitragynine pseudoindoxyl
Clinical data
Other namesSpiro(2H-indole-2,1'(5'H)-indolizine)-7'-acetic acid, 6'-ethyl-1,2',3,3',6',7',8',8'a-octahydro-4-methoxy-alpha-(methoxymethylene)-3-oxo-, methyl ester, (alphaE,1'S,6'S,7'S,8'as)-
Identifiers
IUPAC name
  • methyl (E)-2-[(2S,6'S,7'S,8'aS)-6'-ethyl-4-methoxy-3-oxospiro[1H-indole-2,1'-3,5,6,7,8,8a-hexahydro-2H-indolizine]-7'-yl]-3-methoxyprop-2-enoate
CAS Number
PubChem CID
ChemSpider
ChEMBL
Chemical and physical data
FormulaC23H30N2O5
Molar mass414.502 g·mol−1
3D model (JSmol)
SMILES
  • CC[C@H](C1)[C@](/C(C(OC)=O)=C\OC)([H])C[C@@](N1CC2)([H])[C@]32NC4=CC=CC(OC)=C4C3=O
InChI
  • InChI=1S/C23H30N2O5/c1-5-14-12-25-10-9-23(19(25)11-15(14)16(13-28-2)22(27)30-4)21(26)20-17(24-23)7-6-8-18(20)29-3/h6-8,13-15,19,24H,5,9-12H2,1-4H3/b16-13+/t14-,15+,19+,23+/m1/s1
  • Key:BAEJBRCYKACTAA-WGUOAFTMSA-N

Pharmacology

Mitragynine pseudoindoxyl is a μ opioid receptor agonist and δ opioid receptor antagonist and acts as a G protein biased agonist at μ opioid receptors and possesses a favourable side effect profile compared to conventional opioids.[4]

See also
  • Mitraphylline

References
  1. Jansen KL, Prast CJ (1988). "Ethnopharmacology of kratom and the Mitragyna alkaloids". J Ethnopharmacol. 23 (1): 115–9. doi:10.1016/0378-8741(88)90121-3. PMID 3419199.
  2. Takayama H, Ishikawa H, Kurihara M, Kitajima M, Aimi N, Ponglux D, Koyama F, Matsumoto K, Moriyama T, Yamamoto LT, Watanabe K, Murayama T, Horie S (April 2002). "Studies on the synthesis and opioid agonistic activities of mitragynine-related indole alkaloids: discovery of opioid agonists structurally different from other opioid ligands". J. Med. Chem. 45 (9): 1949–56. doi:10.1021/jm010576e. PMID 11960505.
  3. Yamamoto, L. T.; Horie, S.; Takayama, H.; Aimi, N.; Sakai, S.; Yano, S.; Shan, J.; Pang, P. K.; Ponglux, D.; Watanabe, K. (1999). "Opioid receptor agonistic characteristics of mitragynine pseudoindoxyl in comparison with mitragynine derived from Thai medicinal plant Mitragyna speciosa". General Pharmacology. 33 (1): 73–81. doi:10.1016/S0306-3623(98)00265-1. PMID 10428019.
  4. Váradi A, Marrone GF, Palmer TC, Narayan A, Szabó MR, Le Rouzic V, Grinnell SG, Subrath JJ, Warner E, Kalra S, Hunkele A, Pagirsky J, Eans SO, Medina JM, Xu J, Pan YX, Borics A, Pasternak GW, McLaughlin JP, Majumdar S (2016). "Mitragynine/Corynantheidine Pseudoindoxyls As Opioid Analgesics with Mu Agonism and Delta Antagonism, Which Do Not Recruit β-Arrestin-2". J. Med. Chem. 59 (18): 8381–97. doi:10.1021/acs.jmedchem.6b00748. PMC 5344672. PMID 27556704.
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