digitalis lanata

3 definitions found

digitalis lanata - Collaborative International Dictionary of English v.0.48 :

  digitalin \dig"i*ta`lin\, n. [Cf. F. digitaline.]
        (a) (Medicine, Pharmacy) Any one of several extracts of
            foxglove (Digitalis), as the "French extract," the
            "German extract," etc., which differ among themselves
            in composition and properties. Both Digitalis lanata
            and Digitalis purpurea have been used to prepare
            such extracts.
        (b) (Chem.) the distinctive chemical substance, a steroid
            glycoside, which is the essential ingredient of the
            extracts of foxglove. It is a white, crystalline
            substance (C36H56O14), and is a 3-substituted
            diglucoside of a steroid. It is a powerful cardiac
            stimulant and is used as a cardiotonic for treatment
            of certain heart conditions, such as congestive heart
            failure. Chemically it is
  
            (3[beta],5[beta],16[beta])-3-[6-Deoxy-4-O-[beta]-D-glucopyranosyl-3-O-methyl-[beta]-D-galactopyranosyl)oxy]-14,16-dihyroxy-card-20
            (22)-enolide. The related compounds digitoxin and
            digoxin are also extracted from the foxglove. The
            class of steroid glycosides having cardiotonic
            properties are refered to as the cardiac glycosides.
            --MI11
  
     Syn: digitalinum verum, Diginorgin, Schmiedeberg's digitalin,
          digitalis, digitalis glycoside. [1913 Webster +PJC]

  digitoxin \dig`i*tox"in\ (d[i^]j`[i^]*t[o^]k"s[i^]n), n. (Chem.)
     A steroid glycoside, one of the cardiotonic chemical
     substances which is extracted from the foxglove. It is a
     white, crystalline substance (C41H64O13), and is a
     3-substituted triglucoside of a steroid, related structurally
     to digitalin and digoxin. It is used as a cardiotonic for
     treatment of certain heart conditions, such as congestive
     heart failure. Chemically it is
  
     (3[beta],5[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-2,
     6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-14-hydroxy-card-20(22)-enolide.
     The related compounds digitalin and digoxin are also
     extracted from the foxglove (Digitalis lanata and
     Digitalis purpurea). The class of steroid glycosides having
     cardiotonic properties are refered to as the cardiac
     glycoside group. --MI11
     [PJC]

  digoxin \di*gox"in\, n. (Chem.)
     a steroid glycoside, one of the cardiotonic chemical
     substances which is extracted from the foxglove. It is a
     white, crystalline substance (C41H64O14), and is a
     3-substituted triglucoside of a steroid, related structurally
     to digitalin and digitoxin. It is used as a cardiotonic for
     treatment of certain heart conditions, such as congestive
     heart failure. Chemically it is
  
     (3[beta],5[beta],12[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-2
  ,  6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-12,14-dihydroxy-card-20(22)-enolide.
     The related compounds digitalin and digoxin are also
     extracted from the foxglove (Digitalis lanata and
     Digitalis purpurea). The class of steroid glycosides having
     cardiotonic properties are refered to as the cardiac
     glycosides. --MI11
     [PJC]