A convergent total synthesis platform led to the discovery of TP-2758 from a series of novel 7-methoxy-8-heterocyclyl tetracycline analogs. TP-2758 demonstrated high in vitro potency against key Gram-negative pathogens including extended spectrum β-lactamases- and carbapenemase-producing Enterobacteriaceae and Acinetobacter spp. strains. This compound was efficacious when administered either intravenously or orally in multiple murine infection models and displayed a favorable preclinical pharmacological profile supporting its advancement into clinical development.

中文翻译：

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杂环基四环素。2. 7-甲氧基-8-吡咯烷基四环素：TP-2758的发现，一种有效，口服有效的抗革兰氏阴性病原体的抗菌剂。

聚合的全合成平台导致从一系列新型的7-甲氧基-8-杂环基四环素类似物中发现TP-2758。TP-2758对主要革兰氏阴性病原体（包括超广谱β-内酰胺酶和碳青霉烯酶生产肠杆菌科和不动杆菌属）表现出很高的体外效价。株。当在多种鼠类感染模型中静脉内或口服给药时，该化合物是有效的，并且显示出有利的临床前药理学特征，支持其发展为临床开发。