| abstract |
Compounds of general formula (See formula) where R is a) -C (O) (CH2) nC (O) OH, b) (See formula) where R1 is -N (R2) (R3), and R2 / R3 are independently from each other, hydrogen or lower alkyl, or is a cyclic tertiary amine, optionally substituted with lower alkyl, wherein lower alkyl means a linear or branched alkyl chain containing 1 to 7 carbon atoms, c) -P ( O) (OH) 2, or is d) -C (O) (CH2) nNHC (O) (CH2) nN (R2) (R3); and n is 1, 2, 3 or 4; and pharmaceutically acceptable acid addition salts thereof. |