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Continuous flow synthesis of sulphoxide compounds for use in drug formulations


Project TitleContinuous flow synthesis of sulphoxide compounds for use in drug formulations
Track Codencli-019
Short Description

A process for continuous flow synthesis of pharmaceutically important sulphoxide compounds (used as Proton Pump Inhibitors- used in treating gastric disorders) with very less reaction time and easy scalability



Sulphoxide compounds such as prazoles and modafinils are currently produced using batch synthesis procedure which has longer processing times (1-4 hours). A more efficient process is required at industrial levels.


NCL scientists have developed a process of continuous flow synthesis of sulphoxide compounds with reaction times of ≤ 1 minute. The reaction results in over 90% conversion and over 95% selectivity towards the target sulphoxide compounds (with less than 5% formation of undesired sulphone compounds)


• Gastro-Intestinal (GI) tract disorders have been projected to affect more than a 250 million people in the 7 large pharma markets by 2012*
• Overall GI tract disorders treatment market is expected to reach $32.2 billion by 2014**
• In 2009, proton pump inhibitors were the third largest therapeutic class amounting up to $13.6 billion of sales in the US#
* **


• Process capable of easy scale up
• Results in high yield of the product with 95% of selectivity towards the sulphoxide compounds
• Conversion rate is > 90%
• The process provides an alternative solvent (to chloroform, which is a volatile solvent that evaporates at room temperature and changes the reaction mass)


• The process can be used to make prazoles- used to make drugs to treat the acid-related diseases of the gastrointestinal (GI) tract
• The process can also be used to make drug molecules that can be used as modafinil compounds used as central nervous system stimulants- wakefulness promoting agents
• In production of drugs which act as neuroprotective agents


• Demonstrated at the lab scale
• On the lookout for potential partners for licensing
• Patent applications filed: Indian #- 1392/DEL/2009; PCT- IN2010/000456


Case Manager: Magesh N
Phone: +91-20-25902982

Tagscontinuous flow, synthesis, sulphoxide compounds, proton pump inhibitors, prazoles, batch synthesis
Posted DateJan 2, 2012 6:31 AM


File Name Description
Sulphoxide-Flyer None Download