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Table 2

Purity and yield of Captopril degradation products by two-steps HSCCC separation (adopted from Tian et al. [22]).

Compounds Purity (%) Yield (mg)
C 95.4±2.6 15.41±1.5
EC 94.1±1.7 9.62±0.9
EC-C 94.7±1.6 30.80±2.5
ECG 92.8±2.1 8.90±0.8
ECG-C 93.2±1.9 14.33±1.3

C, (+)-Catechin; EC, (–)-epicatechin; ECG, (–)-epicatechin-3-O-gallate; ECC, (–)-epicatechin-4β-captopril methyl ester; ECGC, (–)-epicatechin-3-O-gallate-4β-captopril methyl ester.

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