Namodenoson Synthesis Route for High-Yield GMP Purity

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for producing namodenoson are inefficient, leading to low yields and high impurity levels, making large-scale production under Good Manufacturing Practice (GMP) challenging.

Innovation Solution

A multi-step process involving protection, oxidation, chlorination, amination, reaction, and deprotection of 2,6-dichloropurine riboside to produce namodenoson, utilizing specific chemical agents and conditions to enhance yield and purity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing methods for producing namodenoson are used, then production can be carried out, but the yield is low and impurity levels are high

Engineering Contradiction:
ImproveyieldVSAvoidpurity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The synthesis process is divided into multiple discrete steps (protection, oxidation, chlorination, amination, reaction, and deprotection), with each step optimized independently to maximize yield and minimize impurities at each stage of namodenoson production

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Protecting groups are introduced at the beginning of the synthesis sequence to prevent unwanted side reactions, and removing agents are selected to ensure complete deprotection at the end, thereby preventing impurity formation throughout the production process

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If existing methods for producing namodenoson are used, then production can be carried out, but impurity levels are high causing health hazards

Engineering Contradiction:
Improvehealth hazards from impuritiesVSAvoidpurity
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent converts potentially harmful intermediate compounds into beneficial protected intermediates through the use of protecting groups, which prevent unwanted reactions and ensure that only the desired final product is formed, thereby eliminating health hazards from impurities

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The synthesis method optimizes reaction parameters including temperature, solvent selection, stoichiometry, and reaction time for each step to maximize product purity and minimize impurity formation, directly addressing health hazard concerns

Inventive Principle:
Principle #35Parameter changes

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 process achieves higher purity and yield of namodenoson, suitable for large-scale GMP production, reducing health hazards from impurities.

Implementation Method 1

oxidizing the compound of formula (III) in the presence of an oxidizing agent to obtain a compound of formula (IV)

Methodology Applied
Scientific EffectOxidation: Oxidation

Data Source

PatentUS20250368676A1Process for preparing namodenoson
Publication Date: 2025.12.04 CAN-FITE BIOPHARMA LTD
  • US20250368676A1 patent drawing
  • US20250368676A1 patent drawing
  • US20250368676A1 patent drawing

AI summary

The present invention provides a process for preparing namodenoson. More specifically, the present disclosure provides a simple and high yield process for Good Manufacturing Practice of namodenoson. The process involves the steps of protection, oxidation, chlorination, amination, reaction and final deprotection.