期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 52, 期 23, 页码 7389-7396出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm900379p
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资金
- Deutsche Akademie der Naturforscher Leopoldina [BM BF-LPD 9901/8-147]
- NIH [R01-DA14251, K05-DA 00360, T32 DA007252]
Bivalent morphinan compounds containing ester linkers were synthesized and their binding affinities at the mu, delta, and kappa opioid receptors determined. Addition of methyl groups adjacent to the hydrolytically labile ester linkage increased stability while only partially affecting binding affinity. The resulting bivalent ligands with optimized spacer length and structure show potent binding profiles with the most potent compound (4b), having K-i values of 0.47 nM for both the mu and kappa opioid receptors, and 4a, having K-i values of 0.95 and 0.62 nM for the mu and kappa receptors, respectively. Both 4a and 4b were partial agonists at the kappa and mu receptors in the [S-35]GTP gamma S binding assay.
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