| abstract |
Compounds of Formulas I and II wherein R 1 is G 10 Onhydrocarbyl, R 2 is hydrogen or Q 3nthe alkyl group, m is 1 to 15, n is 2 to 6, each of Xnmeans, independently of one another, a group and / or one ofnX is -NR 4 / -, -O- or -S- and the remainingnthe groups X independently represent groups (a) in which: R 3nis hydrogen, C 1-6 alkyl, -C 2 R 5, -nCO 1 NR 5, -CR 5QR 6 or -OR 5 / in which R 5 and R 6 are eachnhydrogen or C 1-3 alkyl /, and R 4 is hydrogen or C wnthe alkyl group, each of the moieties being relative to one anothernindependently -CZR 3 / R 4 - or up to two of these Y groupsnthey are independently -NU4 / -, -O- or -S- and the likenY groups are independently -C (R 3) R 4 -, Z 2nis a group X7R7 / NR2- or> N- where R7 isnany of the groups listed above for R 3, and pharmaceuticallynacceptable salts of these compounds which represent ligands to |