Carbapenem-3-carboxylic acid ester derivatives

C - Chemistry – Metallurgy – 07 – D

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C07D 477/20 (2006.01) A61K 31/425 (2006.01)

Patent

CA 2211075

(1R,5S,6S)-2-[(1-(1,3-thiazolin-2-yl)azetidin-3-yl)thio]-6-[(R)-1- hydroxyethyl]-1-methyl-carbapen-2-em-3-carboxylic acid ester derivatives of formula (I) wherein R1 is a hydrogen atom or a lower alkyl group; R2 is an alkyl group which may be substituted by a cycloalkyl group having 4 to 7 carbon atoms which may further be substituted by a lower alkyl group, or is a cycloalkyl group having 4 to 7 carbon atoms which may be substituted by a lower alkyl group; and n is 0 or 1. The compounds are highly absorbable through digestive tract and are rapidly converted into the active compound in the body to show a strong antibacterial activity.

Dérivés d'ester d'acide (1R,5S,6S)-2-[(1-(1,3-thiazolin-2-yl)azétidin-3-yl)thio]-6-[(R)-1-hydroxyéthyl]-1-méthyl-carbapen-2-em-3-carboxylique de formule (I), dans laquelle R?1¿ est un atome d'hydrogène ou un groupe alkyle inférieur; R?2¿ est un groupe alkyle pouvant être substitué par un groupe cycloalkyle à 4-7 atomes de carbone, pouvant à son tour être substitué par un groupe alkyle inférieur, ou est un groupe cycloalkyle à 4-7 atomes de carbone pouvant être substitué par un groupe alkyle inférieur, et n vaut 0 ou 1. Ces composés subissent une absorption élevée dans le système digestif et sont rapidement transformés en composés actifs dans le corps, où ils présentent une forte activité antibactérienne.

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