One-Pot Diels-Alder Synthesis of Polycyclic Opioid Modulators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for developing new compounds active with opioid receptors are limited by complex synthesis protocols and the need for improved chemical synthesis techniques to simplify the creation of these compounds for therapeutic benefits.
Innovation Solution
Development of functionalized polycyclic compounds through a modified Diels-Alder/acylation reaction scheme, allowing for the synthesis of biologically active compounds that can modulate opioid receptors as agonists or antagonists, using a method that combines multiple chemical reactions in a single step to simplify the synthesis process and produce compounds with reactive carboxylic acid groups for further modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional chemistry techniques are used to create new compounds, then compounds can be prepared, but the synthesis protocols are complex and difficult to follow
Solution Approach 1:
The patent combines multiple chemical reactions (Diels-Alder cycloaddition followed by acylation) into a sequential one-pot synthesis protocol. This merging of steps eliminates the need for intermediate isolation and multiple setup procedures, directly addressing the complexity issue while maintaining compound preparation capability
Solution Approach 2:
The synthesis protocol is designed to perform preliminary actions by generating reactive intermediates in situ that can be directly utilized by subsequent reactions. The Diels-Alder adduct is formed first, then immediately undergoes acylation without isolation, simplifying the overall procedure
2Productivity
If multiple chemical reactions are performed in separate steps, then each reaction can be optimized, but the overall synthesis process becomes more time-consuming and complex
Solution Approach 1:
The patent implements continuous useful action by maintaining reaction conditions that allow the Diels-Alder reaction to proceed followed immediately by acylation in the same pot. This eliminates idle time between steps and keeps the chemical transformation continuous, directly improving productivity while reducing total synthesis time
Solution Approach 2:
The first reaction (Diels-Alder) is performed as a preliminary action that generates the substrate for the second reaction (acylation) in situ. This preliminary formation of the cyclic adduct with the anhydride group ready for nucleophilic attack streamlines the overall process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The new compounds can be synthesized more easily and efficiently, providing a broader range of biological activities, including analgesic, antidepressant, and anti-addiction effects, while offering improved selectivity and reduced side effects due to targeted activities on specific opioid receptors.
Implementation Method 1
reacting the diene with a dienophile under sufficient conditions for a combined Diels-Alder/acylation reaction
Implementation Method 2
coupling the carboxylic acid with an amine-containing compound or a hydroxyl-containing compound so as to form an amide or an ester
Data Source
AI summary
A functionalized polycyclic compound can have a structure of Formula 1 or salt, prodrug, analog, or derivative thereof, which compound can be prepared by providing a diene; reacting the diene with a dienophile under sufficient conditions for a combined Diels-Alder/acylation reaction so as to provide a polycyclic compound having a carboxylic acid; and coupling the carboxylic acid with an amine-containing compound or a hydroxyl-containing compound so as to form an amide or an ester and producing a compound having a structure of Formula 1. The compound can be used for modulating an opioid receptor, which can be conducted by administering to an opioid receptor a functionalized polycyclic compound as described herein in an effective amount to modulate the functionality of the opioid receptor. Such opioid modulation can provide a biological benefit to a subject.