Hearn MJ, Cynamon MH, Chen MF, Coppins R, Davis J, Joo-On Kang H, Noble A, Tu-Sekine B, Terrot MS, Trombino D, Thai M, Webster ER, Wilson R. Preparation and antitubercular activities in vitro and in vivo of novel Schiff bases of isoniazid.
Eur J Med Chem 2009;
44:4169-78. [PMID:
19524330 PMCID:
PMC2735020 DOI:
10.1016/j.ejmech.2009.05.009]
[Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 05/07/2009] [Accepted: 05/12/2009] [Indexed: 12/15/2022]
Abstract
Structural modification of the frontline antitubercular isonicotinic acid hydrazide (INH) provides lipophilic adaptations (3-46) of the drug in which the hydrazine moiety of the parent compound has been chemically blocked from the deactivating process of N(2)-acetylation by N-arylaminoacetyl transferases. As a class, these compounds show high levels of activity against Mycobacterium tuberculosis in vitro and in tuberculosis-infected macrophages. They provide strong protection in tuberculosis-infected mice and have low toxicity. With some representatives of this class achieving early peak plasma concentrations approximately three orders of magnitude above minimum inhibitory concentration, they may serve as tools for improving our understanding of INH-based treatment modalities, particularly for those patients chronically underdosed in conventional INH therapy.
Collapse