2. Academic Validation
  3. MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 7: highly soluble and in vivo active quaternary ammonium analogue D13-9001, a potential preclinical candidate

MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 7: highly soluble and in vivo active quaternary ammonium analogue D13-9001, a potential preclinical candidate

  • Bioorg Med Chem. 2007 Nov 15;15(22):7087-97. doi: 10.1016/j.bmc.2007.07.039.
Ken-Ichi Yoshida 1,  Kiyoshi Nakayama,  Masami Ohtsuka,  Noriko Kuru,  Yoshihiro Yokomizo,  Atsunobu Sakamoto,  Makoto Takemura,  Kazuki Hoshino,  Hiroko Kanda,  Hironobu Nitanai,  Kenji Namba,  Kumi Yoshida,  Yuichiro Imamura,  Jason Z Zhang,  Ving J Lee,  William J Watkins
Affiliations

Affiliation

  • 1 Medicinal Chemistry Research Laboratory, Daiichi Pharmaceutical Co., Ltd, 16-13, Kita-Kasai 1-Chome, Edogawa-ku, Tokyo 134-8630, Japan. yoshida.kenichi.rs@daiichisankyo.co.jp
PMID: 17869116 DOI: 10.1016/j.bmc.2007.07.039
Abstract

A series of 4-oxo-4H-pyrido[1,2-a]pyrimidine derivatives, substituted at the 2-position with piperidines bearing quaternary ammonium salt side chains, were synthesized and evaluated for their ability to potentiate the activity of the fluoroquinolone levofloxacin (LVFX) and the beta-lactam aztreonam (AZT) in Pseudomonas aeruginosa. Attachment of the charged entity using an N-ethylcarbamoyloxy linker led to the discovery of the highly soluble compound 22 (D13-9001), which maintained good potency in vitro and displayed excellent activity in vivo in a rat pneumonia model of P. aeruginosa.

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