Q3 · CSIR-NET Chemistry, June 2017
Paper: CSIR-NET June 2017 · Subject: Organic Chemistry · Chapter: Natural Products · Topic: Natural Products – General · Marks: 2 · Difficulty: Medium
The correct match of natural products in Column-I with their biosynthetic precursors in Column-II is Column-I A. 
B. 
Column-II I. L-Lysine II. L-Ornithine III. Farnesyl IV. Geranyl pyrophosphate
B. Column-II I. L-Lysine II. L-Ornithine III. Farnesyl IV. Geranyl pyrophosphate(a)A-IV, B-I
(b)A-IV, B-II
(c)A-III, B-I
(d)A-III, B-II
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Menthol is a monoterpene (C₁₀) from geranyl pyrophosphate. Anabasine's piperidine ring comes from L-lysine via cadaverine. A–IV, B–I (a).
Study loop for Natural Products