14-Methoxymetopon Explained

Verifiedfields:changed
Watchedfields:changed
Verifiedrevid:477209012
Iupac Name:3-Hydroxy-14-methoxy-5,17-dimethyl-7,8-dihydro-4,5α-epoxy-morphinan-6-one
Cas Number:131575-03-6
Chembl:326684
Pubchem:5486940
Chemspiderid:4589140
C:19
H:23
N:1
O:4
Smiles:C[C@]12C(=O)CC[C@@]3([C@]14CCN([C@@H]3CC5=C4C(=C(C=C5)O)O2)C)OC
Stdinchi:1S/C19H23NO4/c1-17-14(22)6-7-19(23-3)13-10-11-4-5-12(21)16(24-17)15(11)18(17,19)8-9-20(13)2/h4-5,13,21H,6-10H2,1-3H3/t13-,17+,18+,19-/m1/s1
Stdinchikey:DENICFHULARDRG-WEZQJLTASA-N

14-Methoxymetopon is an experimental opioid drug developed by a team led by Professor Helmut Schmidhammer at the University of Innsbruck in the mid-1990s.[1] It is a derivative of metopon in which a methoxy group has been inserted at the 14-position. It is a highly potent analgesic drug that is around 500 times stronger than morphine when administered systemically; however, when given spinally or supraspinally, it exhibits analgesic activity up to a million fold greater than morphine.[2] It binds strongly to the μ-opioid receptor and activates it to a greater extent than most similar opioid drugs.[3] This produces an unusual pharmacological profile, and although 14-methoxymetopon acts as a potent μ-opioid full agonist in regard to some effects such as analgesia, a ceiling effect is seen on other effects such as constipation and respiratory depression which is believed to involve interaction with the κ-opioid receptor[4]

See also

Notes and References

  1. US. 5886001. Agonist compounds. .
  2. King MA, Su W, Nielan CL, Chang AH, Schütz J, Schmidhammer H, Pasternak GW . 14-Methoxymetopon, a very potent mu-opioid receptor-selective analgesic with an unusual pharmacological profile . European Journal of Pharmacology . 459 . 2–3 . 203–9 . January 2003 . 12524147 . 10.1016/S0014-2999(02)02821-2 .
  3. Mahurter L, Garceau C, Marino J, Schmidhammer H, Tóth G, Pasternak GW . 26268795 . Separation of binding affinity and intrinsic activity of the potent mu-opioid 14-methoxymetopon . The Journal of Pharmacology and Experimental Therapeutics . 319 . 1 . 247–53 . October 2006 . 16801454 . 10.1124/jpet.106.105395 .
  4. Freye E, Schmidhammer H, Latasch L . 14-methoxymetopon, a potent opioid, induces no respiratory depression, less sedation, and less bradycardia than sufentanil in the dog . Anesthesia and Analgesia . 90 . 6 . 1359–64 . June 2000 . 10825321 . 10.1097/00000539-200006000-00018 . 32240231 . free .