Draw a compound with one or more sp3 stereocenters (you may
use bold and hashed wedges to show the stereochemistry or you may use
3D minimization (Edit → Clean → 3D → Clean in 3D)),
map the stereocenters you want to invert with the number 1
(right-click or control-click → Map → M1), and press the
Invert button below to invert them. (If you get this message
repeatedly, something is wrong with the chair you drew.) Or, you can
get the mirror image of the entire compound by pressing the Mirror button.
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