Synthesis and κ-Opioid Receptor Activity of Furan-Substituted Salvinorin A Analogues
摘要:
The neoclerodane diterpene salvinorin A, found in the leaves of Salvia divinorum, is a potent kappa-opioid receptor agonist, making it an attractive scaffold for development into a treatment for substance abuse. Although several successful semisynthetic studies have been performed to elucidate structure-activity relationships, the lack of analogues with substitutions to the furan ring of salvinorin A has prevented a thorough understanding of its role in binding to the kappa-opioid receptor. Herein we report the synthesis of several salvinorin A derivatives with modified furan rings. Evaluation of these compounds in a functional assay indicated that sterically less demanding substitutions are preferred, suggesting the furan ring is bound in a congested portion of the binding pocket. The most potent of the analogues successfully reduced drug-seeking behavior in an animal model of drug-relapse without producing the sedation observed with other kappa-opioid agonists.
DOI:
10.1021/jm501521d
作为产物:
描述:
聚合甲醛 、 丹酚 A 在
溶剂黄146 、 水 作用下,
反应 21.0h,
以21%的产率得到16-(hydroxymethyl)salvinorin A
参考文献:
名称:
Studies toward bivalent κ opioids derived from salvinorin A: heteromethylation of the furan ring reduces affinity
COMBINATION PRODUCT FOR THE INDUCTION AND/OR MAINTENANCE OF GENERAL ANESTHESIA
申请人:BLUMENTECH, S.L.
公开号:US20210186927A1
公开(公告)日:2021-06-24
The state of general anesthesia (GA) is essential to many surgical and medical procedures. This state is characterized by loss of consciousness, deep analgesia and suppression of movements. GA is rarely achieved with a single drug, usually requiring the combination of various pharmacological agents. Each drug can interact with one or more molecular targets affecting neuronal excitability and synaptic transmission in multiple regions of the CNS. Agonists of the μ-opioid receptor are commonly used in GA to cause analgesia, but not to induce or maintain loss of consciousness or movement suppression. Additionally, agonists of the μ-opioid receptor can cause serious unwanted side effects, e.g. respiratory depression. The present invention provides alternative combination products based on K-opioid receptor agonists. These combination products unexpectedly induced loss of consciousness, and were able to achieve and maintain GA. Furthermore, the combination products suppressed pain perception without the need of a μ-opioid receptor agonist. The combination of Salvinorin A, a selective κ-opioid receptor agonist, with Diazepam or Medetomidine surprisingly led to rapid consciousness, deep analgesia and movement suppression. This combination was found to effectively induce and maintain a state of general anesthesia.