Quinolone antibacterial agents substituted at the 7-position with spiroamines. Synthesis and structure-activity relationships

J Med Chem. 1990 Aug;33(8):2270-5. doi: 10.1021/jm00170a035.

Abstract

A series of fluoroquinolone antibacterials having the 7-position (10-position of pyridobenzoxazines) substituted with 2,7-diazaspiro[4.4]nonane (4b), 1,7-diazaspiro[4.4]nonane (5a), or 2,8-diazaspiro[5.5]undecane (6b) was prepared, and their biological activities were compared with piperazine and pyrrolidine substituted analogues. Most exhibited potent Gram-positive and Gram-negative activity, especially when side chain 4b was N-alkylated.

Publication types

  • Comparative Study

MeSH terms

  • Bacteria / drug effects*
  • Chemical Phenomena
  • Chemistry
  • Gram-Negative Bacteria / drug effects
  • Gram-Positive Bacteria / drug effects
  • Molecular Structure
  • Piperazines / pharmacology
  • Pyrrolidines / pharmacology
  • Quinolines / chemical synthesis*
  • Quinolines / pharmacology
  • Spiro Compounds / chemical synthesis*
  • Spiro Compounds / pharmacology
  • Structure-Activity Relationship

Substances

  • Piperazines
  • Pyrrolidines
  • Quinolines
  • Spiro Compounds