Q9 · CSIR-NET Chemistry, June 2013

Paper: CSIR-NET June 2013 · Subject: Organic Chemistry · Chapter: Natural Products · Topic: Steroids · Marks: 2 · Difficulty: Easy

The biosynthetic precursor for the steroids is

(a)secologanin

(b)shikimic acid

(c)mevalonic acid

(d)$\alpha$-ketoglutaric acid

Answer

Answer: C ✓ checked by 4AB · confidence high

Explanation

Steroids are triterpenoid derivatives (via squalene → lanosterol), and all terpenoids originate from mevalonic acid.

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