Opioid receptor modulators and products and methods related thereto

a technology of receptors and modulators, applied in the field of opioid receptor modulators, can solve the problems of limited success in the effort to eliminate such attributes

Inactive Publication Date: 2021-05-20
EPIODYNE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]In another embodiment, a method is provided for modulating an opioid receptor comprising contacting the opioid receptor with an effective amount of a compound as provided herein, or a pharmaceutically acceptable isomer,

Problems solved by technology

Opioids, whether naturally occurring or synthetic, exhibit any number of problematic side effects, such as constipation,

Method used

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  • Opioid receptor modulators and products and methods related thereto
  • Opioid receptor modulators and products and methods related thereto
  • Opioid receptor modulators and products and methods related thereto

Examples

Experimental program
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examples

[0397]The invention is further illustrated by the following examples. The examples below are non-limiting are merely representative of various aspects of the invention. Solid and dotted wedges within the structures herein disclosed illustrate relative stereochemistry, with absolute stereochemistry depicted only when specifically stated or delineated.

General Methods

[0398]All reagents, for which the synthesis is not described in the experimental part, are either commercially available, or are known compounds or may be formed from known compounds by known methods by a person skilled in the art.

[0399]The compounds and intermediates produced according to the methods of the invention may require purification. Purification of organic compounds is well known to a person skilled in the art and there may be several ways of purifying the same compound. In some cases, no purification may be necessary. In some cases, the compounds may be purified by crystallization. In some cases, impurities may...

example a1

[0437]

Synthesis of 4-((S)-2-(dimethylamino)-3-(3-((S)-1-phenylethyl)ureido)propyl) benzamide (Compound A-1)

Step 1: Synthesis of tert-butyl (S)-(1-amino-3-(4-bromophenyl)-1-oxopropan-2-yl)carbamate (A-1b)

[0438]

[0439]14.8 grams of the starting Boc-protected amino acid (A-1a) (1.00 equiv., 43.0 mmol), 24.5 grams of HBTU (1.50 equiv., 64.5 mmol), and 6.58 grams of 1-hydroxybenzotriazole (1.00 equiv., 43.0 mmol) were dissolved in 50 mL of DMF (6.76 volEquiv.). To this reaction mixture, 22.5 mL of N,N-diisopropylethylamine (3.00 equiv., 129 mmol) was added. Next, 20.7 grams of ammonium carbonate (5.00 Equiv., 215 mmol) was added to the reaction mixture. Finally, another 50 mL of DMF was added and the reaction mixture was allowed to continue overnight. Diethyl ether was added, and a solid formed that blocked the separatory funnel. The solution was transferred to another flask where it was concentrated, diluted with ethyl acetate (500 mL), and washed with water (5×300 mL), saturated ammoniu...

example a2

[0456]

Synthesis of (S)-1-phenylethyl ((S)-2-amino-3-(4-carbamoylphenyl)propyl)carbamate (Compound A-2)

Step 1: Synthesis of tert-butyl (S)-(1-amino-3-(4-carbamoylphenyl)propan-2-yl) carbamate intermediate (A-2g)

[0457]

Step 2: Synthesis of tert-butyl ((S)-1-phenylethyl) ((S)-3-(4-carbamoylphenyl)propane-1,2-diyl)dicarbamate (A-2i)

[0458]

[0459]To a stirred solution of tert-butyl (S)-(1-amino-3-(4-carbamoylphenyl)propan-2-yl)carbamate (A-2 g) (190 mg), in anhydrous acetonitrile (5 mL) and DMF (3 mL) was added (S)-4-nitrophenyl (1-phenylethyl) carbonate (A-2h) (200 mg) (prepared similarly by using the previous procedures: Ronald G. Sherrill, et al, J. Org. Chem. 1995, 60, 730; Miriam Crowe, et al, WO2011054844). The reaction mixture was stirred at rt overnight and then concentrated in vacuo. The residue was purified by flash column chromatography over silica gel (100% EtOAc) to afford (A-2i) as a white solid (210 mg, 73%). LC-MS: 464.2 [M+Na]+; 1H NMR (400 MHz, CDCl3) δ 7.73 (d, 2H, J=8.2 ...

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Abstract

Compounds are provided having the structure of Formula (I): or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope, or salt thereof, wherein A, B, L, R3, R4, R5, R6, R8, m and n are as defined herein. Such compounds modulate the opioid receptor, particulate the mu-opioid receptor (MOR) and/or the kappa-opioid receptor (KOR), and/or the delta-opioid receptor (DOR). Products containing such compounds, as well as methods for their use and preparation, are also provided.

Description

FIELD OF THE INVENTION[0001]The invention relates to opioid receptor modulators, and particularly to compounds that modulate the mu-opioid receptor (MOR) and / or the kappa-opioid receptor (KOR), and / or the delta-opioid receptor (DOR), as well as to products containing the same and to methods of their use and preparation.BACKGROUND[0002]Opioid receptors are a group of inhibitory G protein-coupled receptors with opioids as ligands, which have long been used to treat pain. Opioids generally act on these receptors as agonists, antagonists, or partial agonists. There are three classical opioid receptors, originally named mu (after morphine, its most commonly recognized exogenous ligand), delta (after vas deferens, the tissue within which it was first isolated) and kappa (after the first ligand to act at this receptor, ketocyclazocine). These opioid receptors are distributed widely within the central nervous system and, to a lesser extent, throughout the periphery. Opioids, whether natural...

Claims

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Application Information

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IPC IPC(8): C07C233/78C07D231/56C07C235/60C07C237/42C07D241/24C07D217/06C07D403/06C07D217/14A61P23/00C07D471/04C07C233/62C07C233/63C07D207/16C07D209/14C07D263/58C07D295/13
CPCC07C233/78C07D295/13C07C235/60C07C237/42C07D241/24C07D217/06C07D403/06C07D217/14A61P23/00C07D471/04C07C233/62C07C233/63C07D207/16C07D209/14C07D263/58C07D231/56C07B2200/07C07C237/30C07C237/38C07C271/20C07C275/24C07C2601/02C07D213/42C07D213/56C07D213/58C07D213/80C07D217/00C07D217/26C07D241/28A61P25/00C07C237/48C07D209/34C07D213/40C07D401/12
Inventor MEDINA, JULIO CESARMCGEE, LARRYWEI, ZHI-LIANGSADLOWSKI, CORINNESEIDL, FREDERICKBHATT, ULHASWANG, XIAODONGNGUYEN, THOMASSPERANDIO, DAVIDDING, PINGYUNERURKAR, ALOKLI, YIHONGDUQUETTE, JASON
Owner EPIODYNE INC
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