Chemistry:Pawhuskin A

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Pawhuskin A
Skeletal formula
Ball-and-stick model of pawhuskin A
IUPAC name
3D model (JSmol)
Molar mass 448.603 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Tracking categories (test):

Pawhuskin A is a naturally occurring prenylated stilbene isolated from Dalea purpurea which acts as a competitive silent antagonist of the κ-, μ-, and δ-opioid receptors (Ke = 203 nM, 570 nM, and 2900 nM, respectively).[1][2][3] The compound was named after Pawhuska, Oklahoma, a place near where the samples of Dalea purpurea that led to its discovery were taken from.[3] Other isolates of the plant with affinity for opioid receptors include Pawhuskin B and Pawhuskin C, though these compounds produce comparatively weak opioid receptor displacement (4.2–11.4 μM) relative to Pawhuskin A.[1][2] Dalea purpurea was used in traditional Native American medicine to treat various ailments, and pawhuskin A and related isolates may be some of the constituents of the plant which underlay this use.[2]

See also


  1. 1.0 1.1 "New geranyl stilbenes from Dalea purpurea with in vitro opioid receptor affinity". J. Nat. Prod. 67 (1): 26–30. January 2004. doi:10.1021/np030258d. PMID 14738380. 
  2. 2.0 2.1 2.2 "A concise synthesis of pawhuskin A". J. Nat. Prod. 71 (11): 1949–52. November 2008. doi:10.1021/np800351c. PMID 18922035. 
  3. 3.0 3.1 "Stilbenes as κ-selective, non-nitrogenous opioid receptor antagonists". J. Nat. Prod. 77 (2): 311–9. February 2014. doi:10.1021/np4009046. PMID 24456556. 

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