Page 372 - Applied Pharmacognosy

• About 30 opines are known.
• The majority are formed by condensation of an amino acid (

lysine, arginine, ornithine, …..) with either pyruvate or α –
ketoglutarate.
• Example, Octopine; (arginine, pyruvate).
• Others involve condensation of an amino acid
( lysine, arginine, ornithine, …..) with simple sugars (mannose,
sucrose……).
• Example, Mannopine; (glutamine, mannose).

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