申请人:Hoffman Paul S.
公开号:US20120010187A1
公开(公告)日:2012-01-12
The invention provides FIG.
1
novel antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit antibacterial and antiparasitic action against a wide range of human pathogens. The new classes of compounds show extended action against Gram positive bacteria including MRSA drug resistant pathogens. In the Gram-positive organisms, they specifically target and functionally inhibit microbial attachment to surfaces and biofilm formation. In Gram-negative bacteria, including enteroaggregative
E. coli
strains, these compounds function as pilicides by inhibiting the assembly of pilin subunits into adhesive filaments. Several of these compounds show potent antimicrobial action against Gram positive bacteria, perhaps involving novel targets. Many of the benzothiophene derivatives exhibit antimicrobial activity in the low micrograms per ml range and in blocking biofilm formation in the nanomolar range; ranges considered are well within the range of utility as therapeutics.
本发明提供了基于硝基噻唑骨架的新型抗微生物化合物,能够对广泛的人类病原体表现出抗菌和抗寄生虫作用。这些新型化合物能够延长对革兰氏阳性菌的作用,包括对耐药菌MRSA的作用。在革兰氏阳性生物中,它们能够特异性地靶向和功能性地抑制微生物对表面的附着和生物膜形成。在革兰氏阴性细菌中,包括肠毒性E. coli菌株,这些化合物通过抑制毛细管亚单位的组装成为粘附纤维,发挥作为毛细管抑制剂的作用。其中几种化合物对革兰氏阳性菌表现出强效的抗微生物活性,可能涉及新的靶点。许多苯并噻吩衍生物在低微克/毫升范围内表现出抗微生物活性,并在纳摩尔范围内阻止生物膜形成;这些范围被认为是治疗上实用的范围。