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Nucleophilic substitution at the carbonyl group - Cyclic acetal formation is loaded

The Glasgow chemists show that diketopiperazine cyclic amino acid dimers could have been an important part of peptide formation prior to life’s emergence © Nature Publishing Group

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Someone is helping Christians, and the other guy is helping "The Rebels", also known as al-Qaeda ... you know, Osama Bin Ladin's terrorist group. Nice going Obama, you are helping the bad guys !!!

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Just because an animal looks fine don't mean they are fine. Neuropathic pain is different then physical pain. Join the fight against declawing, tail docking , and ear clipping today. Join groups and sign petitions. Here is mine for dclawing https://plus.google.com/u/0/communities/105353126946040990134

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