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D: CH 2 OH at C5 goes up L: CH 2 OH at C5 goes down 5
If OH at C1 is on the same side of the ring as the CH 2 OH group, the sugar is beta If the OH at C1 is on the opposite side of the ring as the CH 2 OH group, the sugar is alpha Let’s make our example beta
We need to know the configuration of the OH groups at carbons 2, 3, and 4 How do we do this? Go back to the Fischer (Rosanoff) projection Then lay it over on it’s side to the right
Put the remaining OH groups on the Haworth ring at C2, C3, and C4 in the same orientation (up or down) as they are in the leaned over Fischer/Rosanoff structure
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