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Question by chemkid
Submitted on 9/26/2003
Related FAQ: Sci.chem FAQ - Part 1 of 7
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Thalidomide exists as two enantiomers. The 'R' isomer is an antidepressant and the 'S' isomer has been linked to severe birth defects. Why do the isomers of thalidomide have different biological activites?

 
 

Answer by binh_thanh92@yahoo.com
Submitted on 12/12/2003
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that is a simple problem. I will give you an example. you can write a text easily if you write it as you do everyday, but if you write it as the text you see in a mirror, that will be impossible. the power of differentiation of enzymes in cells are very limited, so it can only act on selected substrate.  the difference is as important as the letter p and q  or  ( and ), b and d.
PS: pig and big and dig are 3 diastereomers

 

Answer by huxey
Submitted on 3/22/2004
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what the the full names of the S & R enantiomers?

 

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