Biomolecules

Biomolecules

Question

The absolute configuration of

is:

  • (2S, 3R)

  • (2S, 3S)

  • (2R, 3R)

  • (2R, 3S)

Answer

A.

(2S, 3R)


For C-2 order of priority of substituents is 
OH> CH(Cl)(CH3)>COOH

For C-3, order of priority of substituents is 
Cl> CH(OH)COOH > CH3

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