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. Author manuscript; available in PMC: 2012 Feb 24.
Published in final edited form as: J Med Chem. 2011 Jan 19;54(4):1059–1070. doi: 10.1021/jm101432z

Table 2.

Kinetics of the decomposition of 1 in the presence of thiols.

Entry Conditions Thiol (eq) k (min−1) t1/2 (min)
1 MeOH/Tris (50 mM, pH 7.6) - 7.8 × 10−4 890
2 MeOH/Tris (50 mM, pH 7.6) NAC (2.5) 1.5 × 10−3 453
3 MeOH/Tris (50 mM, pH 7.6) NAC (5) 1.6 × 10−3 434
4 MeOH/Tris (50 mM, pH 7.6) TP (2.5) 1.5 × 10−1 4.6
5 MeOH - 2.1 × 10−4 3261
6 MeOH NAC (2.5) 2.1 × 10−4 3261
7 MeOH NAC (5) 5.2 × 10−4 1324
8 MeOH TP (2.5) 6.0 × 10−3 113