Stereochemistry | ACHIRAL |
Molecular Formula | C15H21NO2 |
Molecular Weight | 247.3327 |
Optical Activity | NONE |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
CCC(=O)C1(CCN(C)CC1)C2=CC=CC(O)=C2
InChI
InChIKey=ALFGKMXHOUSVAD-UHFFFAOYSA-N
InChI=1S/C15H21NO2/c1-3-14(18)15(7-9-16(2)10-8-15)12-5-4-6-13(17)11-12/h4-6,11,17H,3,7-10H2,1-2H3
Ketobemidone (Cliradon, Ketogan, Ketodur, Cymidon) is a strong opioid analgesic, structurally related to pethidine, which has been in clinical use for more
than 50 years. In the Scandinavian countries ketobemidone is only available in combination with a spasmolytic
substance N,N-dimethyl-3,3-diphenyl-I-methylallylamine
(A29). Ketobemidone has been shown to be a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist. In spite of a relatively low mu-receptor affinity ketobemidone has a higher analgesic potency than morphine by
systemic administration. It is probably due to its higher
lipophilicity and consequently more easy penetration into
the CNS. Ketobemidone is indicated for the treatment of all types of severe pain, such as postoperative, cancer, kidney stones and fractures.
Originator
Approval Year
PubMed
Patents
Sample Use Guides
The affinity of ketobemidone to the mu-receptor is significantly lower than that of morphine considering Ki values of
5.5 and 2.4 nM respectively. At the delta-binding site the
two opioids have equal affinity (Ki values 143 versus 136
nM), whereas ketobemidone has much lower affinity than
morphine to the kappa-receptor (Ki 599 versus 130 nM).