The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: (1) in the above formula (1), R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R1 and —(CH2)
n
R2 may form a spiro ring represented by the formula (30) below, together with the adjacent carbon atom (in the formula below, RRR represents a piperidyl group which may have substituents on the piperidine ring), (30) and R2 represents a benzothiazolyloxy group, quinolyloxy group, pyridyloxy group or the like. The present compound has an excellent bactericidal action against
Mycobacterium tuberculosis
, multi-drug-resistant
Mycobacterium tuberculosis
, and atypical acid-fast bacteria.
本发明提供了一种由下述通式(1)表示的2,3-二
氢-6-硝基
咪唑[2,1-b]
噁唑化合物:
在上述式(1)中,R1代表
氢原子或C1-C6烷基,n代表0到6的整数,R1和—(
CH2)nR2可以与相邻的
碳原子形成如下式(30)所示的螺环,其中,在下式中,RRR代表可能在
哌啶环上具有取代基的
哌啶基:
(30)且R2代表
苯并噻唑氧基、
喹啉氧基、
吡啶氧基或类似基团。该化合物对结核分枝杆菌、多重耐药结核分枝杆菌和非典型酸杆菌具有优异的杀菌作用。