Antibacterial agents, and 4-thio azetidinone intermediates
AssigneeBristol-Myers Company
InventorsMarcel Menard, Alain Martel
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Abstract
This invention relates to 2-substituted and 2,6-disubstituted penem compounds of the formula ##STR1## wherein Y is hydrogen, halo or certain organic substituents and X represents certain organic substituents. Also included in the invention are pharmaceutically acceptable salts of the above compounds and derivatives of the above compounds in which the carboxyl group at the 3-position is protected as by an easily removable ester protecting group. The compounds of the present invention are potent antibacterial agents or are of use as intermediates in the preparation of such agents.
Claims5
An intermediate selected from the group consisting of a compound of the formula ##STR1137## wherein Y is hydrogen, Q is phenyl or (lower)alkyl, R" is an easily removable ester protecting group, X is 1 or 2 and M is Cu(I I), Pb(II) or Hg(II) when X is 2 or Ag(I) when X is 1;
- and a compound of the formula ##STR1138## in which Y, Q and R" are as defined above.
Dependencies are inferred from the claim text.