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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The following metabolite is a derivative of tryptophan
assistant
The correct answer is  Tryptophan is conveed to Seratonin, which is then acetylated and fuher methylated to form Metatonin.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 240, Fig no 18.10.