DP Chemistry (last assessment 2024)

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Question 19M.3.sl.TZ1.a(i)

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.sl.TZ1.a(i)
Level sl Paper 3 Time zone TZ1
Command term Draw Question number a(i) Adapted from N/A
a(i).
[Maximum mark: 1]
19M.3.sl.TZ1.a(i)

This question is about antiviral drugs.

Oseltamivir, used for the treatment of severe flu, is inactive until converted in the liver to its active carboxylate form.

Draw a circle around the functional group that can be converted to the carboxylate by hydrolysis.

[1]

Markscheme

 [✔]

 

Note: Accept circles that include the alkyl side chain.

Examiners report

Many students erroneously identified the amide as the required group, failing to realise that its hydrolysis would give the carboxylate ion of the side chain lost to the drug.

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