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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Eur J Med Chem. 2011 Aug 4;46(10):4924–4936. doi: 10.1016/j.ejmech.2011.07.051

Table 3.

Chemical stability of 4-Me-DCK (2), seco-DCK (7), 1′-thia-seco-DCK (32), 2-ethyl-DCP (4), and seco-DCP (12) in acidic conditions a

Purity (area %)
Reaction Time = 1 min Reaction Time = 30 min
2 100% 64%
7 100% 77%
32 100% 96%
4 100% 91%
12 100% 100%
a

Condition: 1% HCl/MeOH/rt; Compound purity: peak area percentage by HPLC determination.