Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1975-05-19
1977-01-11
Daus, Donald G.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
260250B, C07D24124
Patent
active
040027503
ABSTRACT:
Compounds of the formula (I) ##STR1## are disclosed, wherein at least one of R.sup.1, R.sup.2 and R.sup.3 is C.sub.1.sub.-6 alkyl and the others are hydrogen atoms; R.sup.4 is hydroxy or C.sub.1.sub.-6 alkoxy, or a salt of the compound wherein R.sup.4 is hydroxy with a pharmaceutically acceptable base. A typical compound is, for example, 2-carboxy-5-methylpyrazine 4-oxide.
REFERENCES:
Litmanowitsch et al., Chemical Abstracts, vol. 70, 20,083c (1969).
Beilstein, vol. 25, pp. 126-127 (1936).
Ambrogi Vittorio
Logemann Willy
Parenti Marc Antonio
Tommasini Raffaele
Carlo Erba - S.p.A.
Daus Donald G.
Tovar Jose
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