A chemical alkaloid derived from quinine or found naturally in cinchona bark, used in medicinal chemistry research.
From apo- 'from' or 'derived from' plus quinine (from Quechua quina, the cinchona tree). This chemistry term names an alkaloid related to the famous antimalarial compound.
When chemists discovered that cinchona bark cured malaria, they hunted for the active ingredient and found quinine—but there were also other related alkaloids like apoquinine hanging around in the mix, and studying them helped create modern synthetic antimalarials.
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