Abstract
Mitochondrial aldehyde dehydrogenase 2 (ALDH2) is an important enzyme response for the metabolism or detoxification of toxic aldehydes, in particular acetaldehyde and 4-hydroxynonenal (4-HNE), which were important risk factors for acute alcoholism and stroke respectively. A special variant ALDH2∗2 with reduced enzymatic activity was carried by a high percentage of East Asians, especially Han Chinese, and that could increase the risk of these diseases further. Therefore, ALDH2 activators had important potential clinical values. N-benzylbenzamide compounds represented by Alda-1 were the only ALDH2-specific activators that have been reported so far. In this study, three new classes of compounds were modified from Alda-1 to improve their water-solubility and then drug-like properties. The results showed that all compounds had increased water solubility and two classes of compounds exhibited good activation activity. Among them, compound I-6 showed the best activity.
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