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  • Title: Carbon-13 magnetic resonance spectroscopy of drugs II: antihistamines.
    Author: Chang CJ, Peck GE.
    Journal: J Pharm Sci; 1976 Jul; 65(7):1019-23. PubMed ID: 8624.
    Abstract:
    The natural abundance carbon-13 magnetic resonance spectra of a series of antihistamines (pheniramine, chlorpheniramine, methapyrilene, tripelennamine, pyrilamine, and thonzylamine) were detemined using the pulse Fourier transform technique. The chemical shifts were assigned with the aid of long-range carbon-13-hydrogen coupling constants.
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