Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1978-07-10
1980-07-29
Morgenstern, Norman
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
2602391, 42424855, 424267, 424269, 424271, A61K 3150, A61K 3143, C07D49944
Patent
active
042151201
ABSTRACT:
A class of esters of the penicillin, nafcillin have the general formula: ##STR1## wherein A is a C.sub.1 -C.sub.6 alkylene group substituted with one or two groups of formula --NR.sup.1 R.sup.2 and optionally further substituted with one or more methyl or ethyl groups, wherein R.sup.1 and R.sup.2 are the same or different and each is a C.sub.1 -C.sub.6 alkyl group or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached form a saturated 5- or 6- membered heterocyclic ring. Upon oral administration, the esters are absorbed into the bloodstream where they are hydrolyzed to release the antibacterially active parent penicillin, nafcillin.
REFERENCES:
patent: 3157639 (1964-11-01), Doyle et al.
patent: 4081546 (1978-03-01), Ferres
Beecham Group Limited
Clarke Ver a C.
Morgenstern Norman
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