Dasatinib Co-crystals and Solvate Forms

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Solution Overview

Problem

Current forms of dasatinib, such as those described in existing patents, do not include an ethyl formate solvate or co-crystals with specific second compounds like butyl paraben, propyl paraben, and ethyl vanillin, limiting the therapeutic options for treating Philadelphia chromosome-positive chronic myeloid leukemia and acute lymphoblastic leukemia.

Innovation Solution

Development of dasatinib co-crystals and solvate forms, specifically ethyl formate solvate, in combination with butyl paraben, propyl paraben, and ethyl vanillin, along with processes for their preparation, to create pharmaceutical compositions for treating diseases like Philadelphia chromosome-positive chronic myeloid leukemia and acute lymphoblastic leukemia.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing forms of dasatinib are used, then the treatment options for Philadelphia chromosome-positive chronic myeloid leukemia and acute lymphoblastic leukemia are limited, but developing new co-crystal and solvate forms requires additional research and development time

Engineering Contradiction:
Improvetherapeutic optionsVSAvoidresearch and development time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies parameter changes by creating different crystalline forms of dasatinib with varying physical and chemical properties. Specifically, it describes Form I (anhydrous), Form II (monohydrate), and various solvate forms (ethyl formate, butyl paraben, propyl paraben, ethyl vanillin). Each form represents a different parameter state of the same compound, enabling diverse therapeutic applications while maintaining the core medicinal activity of dasatinib against Philadelphia chromosome-positive leukemias.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If multiple co-crystal and solvate forms of dasatinib are developed, then therapeutic efficacy and stability are enhanced, but the complexity of the pharmaceutical composition increases

Engineering Contradiction:
Improvetherapeutic efficacy and stabilityVSAvoidpharmaceutical composition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs composite materials by forming co-crystals and solvates that combine dasatinib with other compounds. Examples include dasatinib co-crystals with butyl paraben, propyl paraben, and ethyl vanillin, as well as ethyl formate solvate forms. These composite structures integrate multiple components into a single crystalline phase, enhancing therapeutic properties while maintaining compositional integrity through defined stoichiometric ratios and crystalline ordering.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS11440908B2Crystalline forms of dasatinib
Publication Date: 2022.09.13 MACFARLAN SMITH
  • US11440908B2 patent drawing
  • US11440908B2 patent drawing
  • US11440908B2 patent drawing

AI summary

The present disclosure relates to a dasatinib co-crystal form comprising dasatinib and a second compound, also referred to as a co-crystal former, wherein the second compound is selected from butyl paraben, propyl paraben and ethyl vanillin. The present disclosure is also related to an ethyl formate solvate form of dasatinib. The present disclosure is also related to processes for the preparation of the dasatinib co-crystal and solvate forms of dasatinib. Further, the present disclosure also relates to pharmaceutical compositions comprising the dasatinib co-crystal and solvate forms of dasatinib and methods for treating disease using the dasatinib co-crystal and solvate forms of dasatinib.