Opiate receptor binding properties of morphine-, dihydromorphine-, and codeine 6-O-sulfate ester congeners

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Abstract

A series of 3-O-acyl-6-O-sulfate esters of morphine, dihydromorphine, N-methylmorphinium iodide, codeine, and dihydrocodeine were prepared and evaluated for their ability to bind to μ-, δ-, κ1-, κ2-, and κ3-opiate receptors. Several compounds exhibited good affinity for the μ-opiate receptor. Morphine-3-O-propionyl-6-O-sulfate had four times greater affinity than morphine at the μ-opiate receptor and was the most selective compound at this receptor subtype.

Graphical abstract

A series of 3-O-acyl-6-O-sulfate esters of morphine, dihydromorphine, N-methylmorphinium iodide, codeine, and dihydrocodeine were prepared and evaluated for their ability to bind to μ-, δ-, κ1-, κ2-, and κ3-opiate receptors. Several compounds exhibited good affinity for the μ-opiate receptor. Morphine-3-O-propionyl-6-O-sulfate had four times greater affinity than morphine at the μ-opiate receptor and was the most selective compound at this receptor subtype.

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Acknowledgment

This research was supported by a Grant from National Institute on Drug Abuse (Medications Development Division Contract No. 271-89-8159).

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