| Identification | Back Directory | [Name]
dynorphin amide (1-13), Ala(2)-(5-F-Phe)(4)- | [CAS]
111846-43-6 | [Synonyms]
Dafphedyn
dynorphin amide (1-13), Ala(2)-(5-F-Phe)(4)-
Dynorphin A (swine), 2-D-alanine-4-(2,3,4,5,6-pentafluoro-L-phenylalanine)-13-L-lysinamide-14-de-L-tryptophan-15-de-L-aspartic acid-16-de-L-asparagine-17-de-L-glutamine- (9CI) | [Molecular Formula]
C76H124F5N25O14 | [MOL File]
111846-43-6.mol | [Molecular Weight]
1706.95 |
| Hazard Information | Back Directory | [Description]
Dafphedyn, [D-Ala2, (F5) Phe4]-dynorphin 1-13-NH2 (DAFPHEDYN) is a potent analog of dynorphin 1-13. Intracerebroventricular administration of the dynorphin analog, [D-Ala2,(F5)Phe4]-dynorphin 1-13-NH2 (DAFPHEDYN) in rats produced diuresis and profound analgesia. Both effects were antagonized by central administration of naltrexone or naloxone. Intravenous administration of 10, 25, and 50 mg/kg of DAFPHEDYN failed to induce diuresis. The increased potency of DAFPHEDYN was apparent from the failure of an equal dose of the parent compound (dynorphin 1-13) to produce diuresis and the failure of [D-Ala2]-dynorphin 1-13-NH2 to produce analgesia. Radioligand binding studies indicated the DAFPHEDYN retains the same degree of kappa selectivity as the parent compound (dynorphin 1-13) though a drop in affinity occurred. DAFPHEDYN may be of significant interest because it retains the essential pharmacology of the parent compound and exhibits marked in vivo potency. |
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