Use of a compound of formula (Ia) or (Ib) for the manufacture of a medicament for the treatment of latent tuberculosis, wherein the compound of formula (Ia) or (Ib) is a pharmaceutically acceptable salt, a quaternary amine, a N-oxide, a tautomeric form or a stereochemically isomeric form thereof wherein R<；SUP>；1 <；/SUP>；is hydrogen, halo, haloalkyl, cyano, hydroxy, Ar, Het, alkyl, alkyloxy, alkylthio, alkyloxyalkyl, alkylthioalkyl, Ar-alkyl or di(Ar)alkyl； p is 1, 2, 3 or 4； R<；SUP>；2 <；/SUP>；is hydrogen, hydroxy, mercapto, alkyloxy, alkyloxyalkyloxy, alkylthio, mono or di(alkyl)amino or a radical of formula ；R<；SUP>；3 <；/SUP>；is alkyl, Ar, Ar-alkyl, Het or Het-alkyl； q is zero, 1, 2, 3 or 4； R<；SUP>；4 <；/SUP>；and R<；SUP>；5 <；/SUP>；each independently are hydrogen, alkyl or benzyl； or R<；SUP>；4 <；/SUP>；and R<；SUP>；5 <；/SUP>；may be taken together including the N to which they are attached； R<；SUP>；6 <；/SUP>；is hydrogen, halo, haloalkyl, hydroxy, Ar, alkyl, alkyloxy, alkylthio, alkyloxyalkyl, alkylthioalkyl, Ar-alkyl or di(Ar)alkyl； or two vicinal R<；SUP>；6 <；/SUP>；radicals may be taken together to form a bivalent radical -CH-CH-CH-CH-； r is 1, 2, 3, 4 or 5； R<；SUP>；7 <；/SUP>；is hydrogen, alkyl, Ar or Het； R<；SUP>；8 <；/SUP>；is hydrogen or alkyl； R<；SUP>；9 <；/SUP>；is oxo； or R<；SUP>；8 <；/SUP>；and R<；SUP>；9 <；/SUP>；together form the radical -N-CH-CH-.
