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Antibiotic LL-E19020 Alpha.sub.1

  • US 5,814,615 A
  • Filed: 09/09/1991
  • Issued: 09/29/1998
  • Est. Priority Date: 09/09/1991
  • Status: Expired due to Fees
First Claim
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1. A compound LL-E19020 Alpha1 comprising(a) the structure ##STR4## (b) a molecular weight of 1225 (FABMS=M/Z 1248 corresponding to M+Na!+);

  • (c) a molecular formula;

    C65 H95 NO21(d) a characteristic ultraviolet absorption spectra as shown in FIG. I of the attached drawings;

    (e) a characteristic infrared absorption spectrum as shown in FIG. II of the attached drawings;

    (f) a characteristic proton nuclear magnetic resonance spectrum as shown in FIG. III of the attached drawings; and

    (g) a characteristic carbon-13 nuclear magnetic resonance spectrum as shown in FIG. IV of the attached drawings.(h) a characteristic HPLC retention time of 23.1 minutes using a gradient of dioxane in aqueous acetic acid.

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