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2014 ; 12
(37
): 7211-32
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Synthesis and immunological effects of heroin vaccines
#MMPMID24995943
Li F
; Cheng K
; Antoline JF
; Iyer MR
; Matyas GR
; Torres OB
; Jalah R
; Beck Z
; Alving CR
; Parrish DA
; Deschamps JR
; Jacobson AE
; Rice KC
Org Biomol Chem
2014[Oct]; 12
(37
): 7211-32
PMID24995943
show ga
Three haptens have been synthesized with linkers for attachment to carrier
macromolecules at either the piperidino-nitrogen or via an introduced 3-amino
group. Two of the haptens, with a 2-oxopropyl functionality at either C6, or at
both the C3 and C6 positions on the 4,5-epoxymorphinan framework, as well as the
third hapten (DiAmHap) with diamido moieties at both the C3 and C6 positions,
should be much more stable in solution, or in vivo in a vaccine, than a hapten
with an ester in one of those positions, as found in many heroin-based haptens. A
"classical" opioid synthetic scheme enabled the formation of a
3-amino-4,5-epoxymorphinan which could not be obtained using palladium chemistry.
Our vaccines are aimed at the reduction of the abuse of heroin and, as well, at
the reduction of the effects of its predominant metabolites, 6-acetylmorphine and
morphine. One of the haptens, DiAmHap, has given interesting results in a heroin
vaccine and is clearly more suited for the purpose than the other two haptens.