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Dental caries affects people of all ages and is a worldwide health concern. Streptococcus mutans is a major cariogenic bacterium because of its ability to form biofilm and induce an acidic environment. In this study, the antibacterial activities of magnolol and honokiol, the main constituents of the bark of magnolia plants, toward planktonic cell and biofilm of S. mutans were examined and compared...
Efficient synthesis of honokiol (1) was accomplished using two kinds of Suzuki–Miyaura reactions. The first Suzuki–Miyaura reaction was employed to couple 2-bromophenol (6) with 4-hydroxyphenylboronic acid (5), giving rise to biphenol 4, and the second coupling was used to introduce allyl groups at 5- and 3′-positions of honokiol. The total synthesis of 1 was completed in 74% yield over five steps...
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