1416134-47-8Relevant articles and documents
Method of preparing 5R-[(benzyloxy) amino] piperidine-2S-carboxylic acid or a derivative thereof
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, (2021/10/13)
The present application relates to methods of preparing 5R-[(benzyloxy) amino] piperidine-2S-carboxylic acid or its derivatives in an environment-friendly way. The method uses L-glutamic acid as a starting material, which is first subjected to esterification reaction in the presence of an acidic reagent, and then reacted successively with 2-haloacetate and N-protecting agent, or with N-protecting agent and 2-haloacetate under a basic condition to obtain compound IV; then, the obtained compound IV is subjected to intramolecular condensation into a ring under the action of a strong base to obtain N-protecting group piperidine-5-one-2S-carboxylate (V).
DIAAZABICYCLOOCTANONE DERIVATIVES AS ANTIBACTERIALS
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Paragraph 0080; 0095-0097, (2020/02/25)
The invention relates to a compound which is a diazabicyclooctanone of Formula (I) or a pharmaceutically acceptable salt thereof: wherein R is as defined herein. The compounds are useful in the treatment of bacterial infection, in particular they are useful in reducing bacterial resistance to antibiotics. They are also useful in the treatment of bacteria which express serine-P-lactamase enzymes, in combination with antibiotics.
MODULATORS OF THE INTEGRATED STRESS RESPONSE PATHWAY
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Page/Page column 57; 58, (2020/12/30)
The present invention relates to compounds of formula (I) or pharmaceutically acceptable salts, solvates, hydrates, tautomers or stereoisomers thereof, wherein R1, R2, R2a, R3, Ra2, Ra4, R