- Carbapenem antibiotic compounds
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The present invention relates to carbapenems and provides a compound of the formula (I) STR1 wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4 alkyl; R3 is hydrogen or C1-4 alkyl; P1 is of the formula: STR2 and one or two of A,B,C,D,E,F,G and H, are nitrogen and the remainder are CH; and P is bonded to the nitrogen of the linking carbamoyl group by a carbon atom, in either ring, is substituted by the carboxy group on a carbon atom, in either ring, and is optionally further substituted, by up to three substitutents, on a carbon atom, in either ring; or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof. Processes for their preparation, intermediates in their preparation, their use as therapeutic agents and pharmaceutical compositions containing them are also described.
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