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A linear synthesis of gemcitabine
Kylie Brown1, Alex Weymouth-Wilson2, Bruno Linclau3
1Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK; Dextra Laboratories Ltd, The Science and Technology Centre, Earley Gate, Whiteknights Road, Reading RG6 6BZ, UK.
Carbohydrate Research
|February 16, 2015
Summary
This study presents a new linear synthesis for gemcitabine, a cancer drug. The key step involves a high-yielding conversion to a glycosyl urea, simplifying gemcitabine production.
Area of Science:
- Organic Chemistry
- Medicinal Chemistry
- Synthetic Chemistry
Background:
- Gemcitabine (2'-deoxy-2',2'-difluorocytidine) is a vital chemotherapeutic agent used in treating various cancers.
- Existing synthetic routes for gemcitabine can be complex and may require optimization for efficiency.
Purpose of the Study:
- To develop a novel, linear synthetic pathway for gemcitabine.
- To improve the yield and efficiency of gemcitabine synthesis through a key intermediate conversion.
Main Methods:
- A linear synthesis approach was employed.
- The key step involved the direct, high-yielding conversion of 3,5-di-O-benzoyl-2-deoxy-2,2-difluororibose to a glycosyl urea.
- Subsequent conversion to the cytosine base via a uracil derivative was performed.
Main Results:
- A high-yielding direct conversion to the glycosyl urea intermediate was achieved.
- The overall linear synthesis of gemcitabine was demonstrated.
- The process exhibited modest anomeric selectivity.
Conclusions:
- The reported linear synthesis offers a potentially more efficient route to gemcitabine.
- The key glycosyl urea formation step is crucial for the improved synthesis.
- Further optimization may enhance anomeric selectivity in future applications.