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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Nat Chem. 2010 Aug 8;2(10):847–852. doi: 10.1038/nchem.751

Table 2.

Outcome of competition experiments between pairs of esters 2–6.

Ester* 2 3 4 5 6
2 —
3 82 —
4 84 <10 —
5 46 44 52 —
6 41 48 56 <10 —
*

In D2O. Concentrations of species: capsule 12 (0.5 mM), ester ‘a’ (0.5 mM), ester ‘b’ (0.5 mM) and NaOH (18 mM). Numerical values correspond to the percentage remaining of the slower reacting ester (coloured accordingly) when all of the more quickly hydrolysing ester had been consumed.