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. 2017 Feb 21;23(7):1147–1162. doi: 10.3748/wjg.v23.i7.1147

Table 3.

In vitro kinetics of prodrugs in aqueous buffers, gastrointestinal tract homogenates and fecal matter

Prodrug Incubation medium
HCl buffer (pH 1.2) and stomach homogenates Phosphate buffer (pH 7.4) and intestinal homogenates Colon homogenate
Fecal matter
K ± SD (min-1)1 t1/2 (min) Prodrug hydrolyzed BBA released K ± SD (min-1)1 t1/2 (min) Prodrug hydrolyzed BBA released
BH Stable Negligible 0.0013 514.1 78.10% 73.60% 0.0009 723.1 62.29% 57.37%
hydrolysis
BP Stable Negligible 0.0014 488.3 75.08% 71.79% 0.0010 636.7 57.38% 56.67%
hydrolysis
BT Stable Negligible 0.0018 379.4 86.67% 86.39% 0.0010 662.5 69.75% 72.52%
hydrolysis
BTY Stable Negligible 0.0014 484.4 70.33% 68.57% 0.0010 677.6 55.95% 55.13%
hydrolysis
1

Average of three readings; follows first-order kinetics.