Monday, November 28, 2016

PHARMA SPECIAL..... Flow chemistry:

PHARMA SPECIAL : Flow chemistry

Recent developments in the synthesis of pharmaceutical products R. Porta et al have given a very useful coverage of this contemporary subject.
Pharma industry still relies on multipurpose batch or semi-batch reactors for APIs. However, there is increasing interest as continuous processes allow safer and more efficient operations and become almost a necessity when hazardous chemicals are involved.
FDA favours products coming from continuous plants due to consistency of the product. This strategy also allows combination with other enabling technologies such as microwave irradiation, supported reagents or catalysts, photochemistry, inductive heating, electrochemistry, new solvent systems, and 3D printing.
Of course, microreactors can be used and automation is facilitated.
Literature from 2013 to 2015 has been covered along with very recent examples not reported in any published review.
Relatively unexplored field of stereoselective organocatalysis is also covered.
The field of chiral drugs is covered and overall perspective is given.

(Org. Proc. Res. Dev., 2015, DOI: 10.1021/acs.oprd.5b00325). 

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