Biosynthetic Studies And
Basic Metabolic Pathways
DR. SIDDHI UPADHYAY
H.O.D. & ASSOCIATE PROFESSOR
Dept. of Pharmacognosy and Phytochemistry
SIGMA INSTITUTE OF PHARMACY
CONTENT
•Brief introduction to biosynthetic pathways of
secondary metabolite. Biogenesis of pharmaceutically
important compounds
•Acetate mevalonate: Menthol, Vitamin-A,
Diosgenin, β-amyrin, Glycyrrhetinic acid,
Carotenoids
•Shikimic acid: Atropine, Quinine, Reserpine,
Morphine, Podophyllotoxin, Ephedrine, Colchicine,
Ergot Alkaloids
•Acetate malonate: Linoleic acid, Omega-3 fatty acid
BASIC BIOSYNTHETIC PATHWAYS
BASIC BIOSYNTHETIC PATHWAYS
1. Calvin cycle
- precursor for carbohydrates
2. Acetate Mevalonate Pathway
- precursor for steroids, terpenoids
3. Acetate Malonate Pathway
- precursor for fatty acids
4. Polyacetate Malonate Pathway
- precursor for anthraquinones
5. Shikimic Acid Pathway
- precursor for aromatic amino acids
6. Amino Acid Pathway
- precursor for aliphatic amino acids
7. Flavonoid Pathway
- precursor for flavonoids
Acetate Mevalonate Pathway
Acetate
Malonate
Pathway
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ACETATE MEVALONATE PATHWAY
Biosynthesis of Menthol
Biosynthesis of Vitamin-A
Biosynthesis of Diosgenin
Biosynthesis of β-amyrin
Biosynthesis of Glycyrrhetinic acid
Biosynthesis of Carotenoids
ACETATE MALONATE PATHWAY
Biosynthesis of Linoleic acid
Biosynthesis of Omega-3 fatty acids
They are PUFA (polyunsaturated fatty acids) named
EPA (Eicosapentaenoic Acid), DHA (Docosahexaenoic
Acid)
SHIKIMIC ACID PATHWAY
Biosynthesis of Atropine
Biosynthesis of Quinine
Biosynthesis of Reserpine
Biosynthesis of Morphine
Biosynthesis of Podophyllotoxin
Biosynthesis of Ephedrine
Biosynthesis of Colchicine
Biosynthesis of Ergot Alkaloids
THANK YOU !!!
siupa.pharma@gmail.com

Biosynthetic_Pathways