Abstract: A process for the production of petroleum tar pitch with the using a fresh hydrocarbon feedstock, preheating it, treating the heated feedstock and passing fractionating the treated feedstock into gases, light distillates and a bottom fractionation stream, then dividing the bottom fraction stream into a recycle stream and a cracked fraction stream and using the cracked fraction stream in a reduced pressure distillation tower so that the light cracked fraction is fractionated light vacuum gas oil, heavy vacuum gas oil and a high quality petroleum tar pitch.

Abstract: Compounds of Formula II, wherein X is selected from chloro, fluoro, bromo and iodo, R1 and R2 are each independently selected from H, —CH3, —CH2CH3, —CH2CH2CH3, or —CH(CH3)2; compositions containing them, their use in therapy, including their use as anti-mycobacterial agents, for example in the treatment of a mycobacterial infection in a mammal, and methods for the preparation of such compounds, are provided.

Abstract: Compounds of Formula (I), wherein substituents R1, R2 and R5 are as defined, and Ar represents substituted phenyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, furanyl, imidazolyl and thiophenyl substituted by a hydroxyalkyl substituent and an optional other substituent; compositions containing them, their use in therapy, including their use as antibacterials, for example in the treatment of tuberculosis, and methods for the preparation of such compounds, are provided.

Abstract: Compounds of Formula (I), wherein substituents R1, R2 and R5 are as defined, and Ar represents substituted phenyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, furanyl, imidazolyl and thiophenyl substituted by a hydroxyalkyl substituent and an optional other substituent; compositions containing them, their use in therapy, including their use as antibacterials, for example in the treatment of tuberculosis, and methods for the preparation of such compounds, are provided.

Abstract: Compounds of Formula (I) or pharmaceutically acceptable salts or N-oxides thereof: (relative chemistry shown) pharmaceutical compositions comprising them, their use in therapy especially against tuberculosis, and methods of preparing them are described.

Abstract: Bicyclic nitrogen containing compounds and their use as antibacterials.

Abstract: Compounds of Formula (I) or pharmaceutically acceptable salts or N-oxides thereof: wherein: one of Z1 and Z2 is CH or N and the other is CH; L is selected from: —CH2—CH?CH—, —CH?CH—CH2—, —(CH2)p— where p is 2, 3 or 4, —CH2—CH2—O—, —O—CH2—CH2—, —CH2—CH2—NH—, —HN—CH2—CH2—, —C(O)—CH?CH—, —CH?CH—C(O)—, —CH2—C?C— or —C?C—CH2—; U represents a cyclic group; m is 0 or 1, n is independently 0 or 1; and substituent(s) R5 and R6 are independently selected from: halo, CF3, OCF3, C1-3 alkyl, C1-3 alkoxy, nitro and cyano, pharmaceurtical compositions comprising them, their use in therapy especially against tuberculosis, and methods of preparing them.

Abstract: Tricyclic nitrogen-containing compounds of Formula (I) or pharmaceutically acceptable salts, solvates or N-oxides thereof: compositions containing them, their use in the treatment of tuberculosis, and methods for the preparation of such compounds.

Abstract: Tricyclic nitrogen-containing compounds of Formula (I) or pharmaceutically acceptable salts and/or N-oxides thereof: compositions containing them, their use in the treatment of tuberculosis, and methods for the preparation of such compounds.

Abstract: Compounds of Formula (I) or pharmaceutically acceptable salts or N-oxides thereof: (relative chemistry shown) pharmaceutical compositions comprising them, their use in therapy especially against tuberculosis, and methods of preparing them are described.

Abstract: Bicyclic nitrogen containing compounds and their use as antibacterials.