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Clinical pharmacy PharmD program Third level Phytochemistry-1 (PG-504)
The different formulae of glucose (β-Glucose)
(Kiliani, Fischer, modernized Fischer, Haworth and chair, boat
conformation)
Chair and boat forms of D-glucose
Substituents on the ring carbons may be either axial (ax), or equatorial (eq).
Generally, substituents in the equatorial positions are less sterically hindered
by neighboring substituents, and conformers with bulky substituents in
equatorial positions are favored. Another conformation, the “boat” is seen only
in derivatives with very bulky substituents.
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