The present invention relates to a beta-lactamase substrate compound for electrochemical detection of beta-lactamases, wherein the beta-lactamase substrate compound is according to formula (I), wherein β is hydrogen, C-C alkyl, C-C fluoroalkyl or is according to formula (II), wherein X is S or O, and Ris C-C alkyl, optionally comprising one or more carbonyl, hydroxyl, ether, ester or carboxyl functional groups; and R is selected from the group consisting of 4-cyanobenzyll, 4-nitrobenzyl, 4-sulfonebenzyl, 2,4-dicyanobenzyl, 2-nitro-4-cyanobenzyl, 3,4-dinitrobenzyl and 3,5-dinitrobenzyl, wherein the beta-lactamase substrate compound is hydrolysable by a beta-lactamase; and wherein the beta-lactamase substrate compound has a degradation at 4 °C equal to or lower than 50 % after 4 weeks and equal to or lower than 70 % after 18 weeks, and/or a degradation at 20 °C equal to or lower than 80 % after 4 weeks and equal to or lower than 85 % after 18 weeks, wherein the degradation is determined from the difference of the integration of nuclear magnetic resonance measurement signals of the beta-lactamase substrate compound and of dimethylformamide. The invention further relates to an electrochemical detection method for determination of the presence of bacteria producing beta-lactamases in a sample using the beta-lactamase substrate compound according to the invention.
- 출원번호 : EP2024/078641
- 출원인 : CORIS BIOCONCEPT
- 특허번호 :
- IPC : C07D-501/60(2006.01);C12Q-001/04(2006.01);G01N-027/48(2006.01);