Farnesyl Dibenzodiazepinone Synthesis via Regioselective Coupling

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Solution Overview

Problem

Existing methods for producing dibenzodiazepinone compounds, such as BU-4664L and ECO-04601, are costly and time-consuming due to the need for culturing microorganisms and multiple extraction and purification steps.

Innovation Solution

The synthesis of farnesyl dibenzodiazepinone compounds is achieved through controlled Ullmann and Buchwald coupling reactions, allowing for regioselectivity and stereochemistry in the production of compounds like AMO-01, using specific reagents and conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If microorganism culturing and multiple extraction/purification steps are used to produce dibenzodiazepinone compounds, then the compounds can be obtained with biological activity, but the production process becomes costly and time-consuming

Engineering Contradiction:

Improvebiological activity of compoundsVSAvoidproduction efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the biological production system (microorganism culturing) with a chemical synthesis system. Specifically, it uses sequential chemical reactions including Ullmann coupling to form the dibenzodiazepinone core structure, followed by farnesylation to attach the farnesyl group, thereby eliminating the need for time-consuming microbial fermentation and multiple extraction/purification steps while maintaining the desired biological activity of the final compound

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the production parameters from biological conditions (microorganism cultivation, fermentation) to controlled chemical reaction conditions (temperature, solvent, catalyst, reaction time). By optimizing these chemical parameters, the synthesis achieves high purity products with desired biological activity while significantly reducing production time and cost

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If multiple extraction and purification steps are performed to obtain dibenzodiazepinone compounds from culture media, then acceptable purity levels are achieved, but the process becomes costly and time-consuming

Engineering Contradiction:

Improvepurity of compoundsVSAvoidproduction time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent employs protective group chemistry where hydroxyl groups are protected as silyl ethers (TBS or TIPS groups) during the synthesis process. This preliminary protection prevents unwanted side reactions and ensures high purity of the final product. The protective groups are strategically installed before key coupling reactions and are removed only at the final stage, eliminating the need for multiple intermediate purification steps

Inventive Principle:

Principle #10Preliminary action

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

This method enables the efficient and cost-effective production of high-purity farnesyl dibenzodiazepinone compounds, such as AMO-01, suitable for pharmaceutical applications.

Implementation Method 1

the methods for synthesizing some of the farnesyl dibenzodiazepinone compounds of the present invention are based on the surprising discovery by the inventors that use of an Ullmann coupling reaction in the method, with careful control over the amount of copper in the reaction, achieves a surprising degree of regioselectivity in the resulting compounds

Methodology Applied

Scientific EffectUllmann coupling: Chemical Bonding