Bulletin of the Korean Chemical Society

  • 제23권12호
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  • Pages.1729-1732
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  • 2002
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Solid-state Chracterization of the HIV Protease Inhibitor

  • 발행 : 2002.12.20
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초록

The LB71350,(3S, 4R)-Epoxy-(5S)-[[N-(1-methylethoxy)carbonyl]-3-(methylsulfonyl)-L-valinyl]amino]-N-[2-methyl-(1R)-[(phenyl)carbonylpropyl-6-phenylhexanamide, is a novel HIV protease inhibitor. Its equilibrium solubility at room temperature was less than $40{\mu}g/mL.$ It was speculated that the low aqueous solubility might be due to the high crystalline lattice energy resulting from intermolecular hydrogen bonds. The present study was carried out to learn the solid-state characteristics of LB71350 using analytical methods such as NMR, FT-IR and XRD. $^{13}C$ Solid-state NMR, solution NMR, and FT-IR spectra of the various solid forms of LB71350 were used to identify the conformation and structure of the solid forms. The chemical shifts of $^{13}C$ solid-state NMR spectra suggest that the crystalline form might have 3 intermolecular hydrogen bondings between monomers.

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참고문헌

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  3. Polymorphic Characterization of Pharmaceutical Solids, Donepezil Hydrochloride, by 13C CP/MAS Solid-State Nuclear Magnetic Resonance Spectroscopy vol.30, pp.9, 2002, https://doi.org/10.5012/bkcs.2009.30.9.2007