Abstract: Compounds of formula (I) as well as pharmaceutically-acceptable salts and pro-drugs thereof are disclosed wherein R1, R2, R3, and R4 are defined herein. Also disclosed are processes for making compounds of formula (I) as well as methods of using compounds of formula (I) for treating bacterial infections.

Abstract: Compounds of the formula (I), or a pharmaceutically-acceptable salt, or an in-vivo-hydrolysable ester thereof, (I) R1a is NH(C?W)R5 or (a); W is O or S; R2 and R3 are for example H or F; R1 is for example hydrogen, or halogen; R5 is selected from hydrogen, (2-6C)alkyl (optionally substituted); R6 and R7 are independently selected from hydrogen, and (1-4C)alkyl (optionally substituted); wherein R4 is either a hydroxymethyl substituent on C-4? of the isoxazoline ring; or R4 is a hydroxymethyl substituent on C-5? of the isoxazoline ring and the stereochemistry at C-5? of the isoxazoline ring and at C-5 of the oxazolidinone ring is selected, such that the compound of formula (I) is a single diastereomer; are useful as antibacterial agents; and processes for their manufacture and pharmaceutical compositions containing them are described.

Abstract: A compound of the formula (I), or a pharmaceutically-acceptable salt, or in-vivo hydrolysable ester thereof formula (I) wherein in (I) C is for example formula (D), formula (E), formula (H) wherein A and B are independently selected from (i) formula (J) and (ii) formula (K) m is 1 or 2; R2b and R6b, R2a and R6a, R3a and R5a, are for example selected from H, F, OMe and Me; R2b? and R6b?, R2a? and R6a?, R3a?, R5a? are for example selected from H, OMe and Me; R1a is for example optionally substituted (1-10C)alkyl; R1b is for example selected from —NR5C(?W)R4, formula (a), or formula (b) wherein HET-1 is for example isoxazolyl and HET-2 is for example triazolyl or tetrazolyl. Methods for making compounds of the formula (I), compositions containing them and their use as antibacterial agents are also described.

Abstract: Compounds of the formula (I), or a pharmaceutically-acceptable salt, or an in-vivo-hydrolysable ester thereof, wherein —N-HET is, for example, (Ic) or (If) wherein R1 is, for example, halogen or a (1-4C)alkyl group which is substituted by one substituent selected from, for example, hydroxy, (1-4C)alkoxy, amino, cyano or azido; Q is selected from, for example, Q1 wherein R2 and R3 are independently hydrogen or fluoro; T is selected from a range of groups, for example, wherein m is 0, 1 or 2; are useful as antibacterial agents; and processes for their manufacture and pharmaceutical compositions containing them are described.

Abstract: Compounds of the formula (I), or a pharmaceutically-acceptable salt, or an in-vivo-hydrolysable ester thereof, wherein —N-HET is, for example, (Ic) or (If) wherein R1 is (1-4C)alkyl; Q is selected from, for example, Q1 wherein R2 and R3 are independently hydrogen or fluoro; T is selected from a range of groups, for example, wherein m is 0, 1 or 2; are useful as antibacterial agents; and processes for their manufacture and pharmaceutical compositions containing them are described.