Sulfometuron methyl (SM) is an inhibitor of acetohydroxyacid synthase (AHAS), the first common enzyme in the branched-chain amino acid biosynthetic pathway, and shows activity against Mycobacterium tuberculosis both in vitro and in vivo. To develop AHAS inhibitor derivatives with more potent activity, 100 sulfonylurea analogues were screened for antimycobacterial activity against M. tuberculosis and non-tuberculous mycobacteria (NTM), and then evaluated for intracellular activity using mouse macrophages. Three new compounds with antimycobacterial activity comparable with that of SM were identified. These compounds exhibit significant activity against intracellular M. tuberculosis (including the drug-resistant M. tuberculosis strains), and NTM Mycobacterium abscessus and Mycobacterium kansasii, respectively.
Bibliographical noteFunding Information:
Funding : This study was supported by a grant from the Korea Health 21 R&D project, Ministry of Health and Welfare, Republic of Korea (01-PJ10-PG6-01GM03-002) and a grant of the Korea Science & Engineering through the Infection Signaling Network Research Center (R13-2007-020-01000-0) at Chungnam National University.
All Science Journal Classification (ASJC) codes
- Microbiology (medical)
- Infectious Diseases
- Pharmacology (medical)