Drug – bio-affecting and body treating compositions – Plural fermentates of different origin
Patent
1975-03-03
1985-11-19
Goldberg, Jerome D.
Drug, bio-affecting and body treating compositions
Plural fermentates of different origin
A61K 3500
Patent
active
045541604
ABSTRACT:
The invention relates to a new series of penicillin esters and salts thereof, to methods of their preparation and to intermediates in the production of the esters of the general formula ##STR1## in which R.sub.1 and R.sub.2 represent an alkyl radical having from 1 to 6 carbon atoms, a cycloalkyl or cycloalkylalkyl radical the cycloalkyl part having from 3 to 10 carbon atoms, or R.sub.1 and R.sub.2 together with the nitrogen atom represent a heterocyclic ring with from 4 to 8 carbon atoms; R.sub.3 represents radicals known from natural, biosynthetic, and semisynthetic penicillins; and pharmaceutically acceptable salts thereof.
The new compounds are efficiently absorbed from the gastrointestinal tract and after the absorption they are rapidly transformed into the corresponding free penicillins and amidinopenicillanic acids, whereby a broad-spectrum infection can be combated.
Goldberg Jerome D.
Leon Bernard S.
Lovens Kemiske Fabrik Produktionsaktieselskab
Saxe Jon S.
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