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stereoisomer СЪЩ

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stereoisomer ХИМ

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Only the natural stereoisomer, -multistriatin, attracts the elm bark beetles. en.wikipedia.org

The rotation may be either clockwise, to the right (dextrorotary - d-rotary), or left (levorotary - l-rotary) depending on which stereoisomer is present. en.wikipedia.org

When dirigent protein is present during the reaction, one stereoisomer of one compound is highly enriched. en.wikipedia.org

While it does provide access to every possible stereoisomer of any desired aldose, the process is limited in by its low yield and use of toxic reagents. en.wikipedia.org

Ring closure creates another chiral center at the anomeric carbon (the one with the hemiacetal or acetal functionality), and therefore each open-chain stereoisomer gives rise to two distinct stereoisomers (anomers). en.wikipedia.org

It is a stereoisomer of quinine, originally derived from the bark of the cinchona tree. en.wikipedia.org

Upon subsequent removal of the auxiliary, the desired aldol stereoisomer is revealed. en.wikipedia.org

Although it is found in nature as a single stereoisomer, halostachine is more commonly available as a synthetic product in the form of its racemate (see below). en.wikipedia.org

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