Syntheses of novel high affinity ligands for opioid receptors
作者:Mark P. Wentland、Rongliang Lou、Qun Lu、Yigong Bu、Christoph Denhardt、Jin Jin、Rakesh Ganorkar、Melissa A. VanAlstine、Chengyun Guo、Dana J. Cohen、Jean M. Bidlack
DOI:10.1016/j.bmcl.2009.02.078
日期:2009.4
series of novelhighaffinity opioid receptorligands have been made whereby the phenolic-OH group of nalbuphine, naltrexone methiodide, 6-desoxonaltrexone, hydromorphone and naltrindole was replaced by a carboxamido group and the furan ring was opened to the corresponding 4-OH derivatives. These furan ring ‘open’ derivatives display very highaffinity for μ and κ receptors and much less affinity for δ
Compounds of formulas:
are disclosed. The compounds are useful for ameliorating the side effects of therapeutic opiates.
公式为的化合物被披露。这些化合物对于改善治疗鸦片副作用是有用的。
QUATERNARY OPIOID CARBOXAMIDES
申请人:Wentland Mark P.
公开号:US20120302594A1
公开(公告)日:2012-11-29
Compounds of formulas:
are disclosed. The compounds are useful for ameliorating the side effects of therapeutic opiates.
公式为的化合物被披露。这些化合物可用于改善治疗阿片类药物的副作用。
Syntheses and opioid receptor binding properties of carboxamido-substituted opioids
作者:Mark P. Wentland、Rongliang Lou、Qun Lu、Yigong Bu、Melissa A. VanAlstine、Dana J. Cohen、Jean M. Bidlack
DOI:10.1016/j.bmcl.2008.10.134
日期:2009.1
A series of 15 novel opioid derivatives were made where the prototypic phenolic-OH group of traditional opioids was replaced by a carboxamido (CONH2) group. For 2,6-methano-3-benzazocines and morphinans similar or, in a few instances, enhanced affinity for mu, delta and kappa opioid receptors was observed when the OH --> CONH2 switch was applied. For 4,5 alpha-epoxymorphinans, binding affinities for the corresponding carboxamide derivatives were much lower than the OH partner consistent with our pharmacophore hypothesis concerning carboxamide bioactive conformation. The active metabolite of tramadol and its carboxamide counterpart had comparable affinities for the three receptors. (C) 2008 Elsevier Ltd. All rights reserved.
Palladium-catalyzed cyanation of hindered, electron-rich aryl triflates by zinc cyanide
作者:Hitoshi Kubota、Kenner C. Rice
DOI:10.1016/s0040-4039(98)00414-6
日期:1998.5
We examined the palladium-catalyzed cyanation of hindered, electron-rich aryl triflates by zinc cyanide using 2-methoxyphenyl trifluoromethanesulfonate (4) as a model compound The reaction with two equivalents of Zn(CN)(2) and catalytic Pd(PPh3)(4) in DMF at 120 degrees C for 2 hr afforded 2-methoxybenzonitrile (5)in 81% yield. The synthesis of 3-cyano-3-desoxynaltrexone(3), which had not previouly been obtained by the reaction with potassium or sodium cyanid: as a cyanide source, was achieved by applying this procedure to its corresponding triflate 2. Published by Elsevier Science Ltd.