Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1980-09-17
1981-12-08
Jiles, Henry R.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
42424852, 542418, 544 90, A61N 31535, C07D49804
Patent
active
043047742
ABSTRACT:
Broad spectrum .beta.-lactam antibiotics represented by the formula ##STR1## wherein R is the residue of a carboxylic acid, R.sub.2 is H or OCH.sub.3, and R.sub.4 is hydrogen or C.sub.1 -C.sub.3 alkyl; are obtained by reacting a 7-acylamino-3-halomethyl-1-oxa-.beta.-lactam ester with the desired 1- or 2-tetrazolemethyl substituted 1H or 2H tetrazole-5-thiol. Alternatively, a 7-amino-3-halo-methyl-1-oxa-.beta.-lactam ester is first reacted with the bis-tetrazole thiol and then the product is N-acylated with the desired carboxylic acid.
REFERENCES:
patent: 4138486 (1979-02-01), Narisada et al.
patent: 4226866 (1980-10-01), Christensen et al.
patent: 4232151 (1980-11-01), Nagata et al.
Dentz Bernard
Eli Lilly and Company
Jiles Henry R.
Scanlon William B.
Whale Arthur R.
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