ABC26OR0100 · Natural Products
Subject: Organic Chemistry · Chapter: Natural Products · Topic: Natural Products – General · Exam: CSIR-NET JUNE 2015 · Marks: 2 · Difficulty: Medium
Biogenetic precursors for the natural product umbelliferone among the following are 
umbelliferone
umbelliferone(a)L-tryptophan
(b)cinnamic acid
(c)L-methionine
(d)L-phenylalanine
Answer
Answer (as printed): B
Explanation
Umbelliferone is synthesized from L-phenylalanin., which is produced via shikimate path way. Phenylalanine is lysated into cinamic acid. Followed by hydrolyzed 4-hydroxylate to yield 4-coumaric acid.
Explanation as extracted from the printed page; notation may be imperfect.