Compounds of formula and/or its E/E-, E/Z- or Z/Z geometrical isomer forms; wherein R 1 and R 2 independently of each other are hydrogen; C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, which are optionally substituted by at least one hydroxy; or R 1 and R 2 together with the nitrogen atom linking them form a -(CH 2) n - ring which is optionally interrupted by -O- or by-NH-; R 3 is a -(C=O)OR 6 group; or a - NHR 6 group; R 6 is C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, which is optionally substituted by one or more than one OH; R 4 and R 5 are hydrogen; or R 4 and R 5 form a -(CH 2) n - ring which is optionally substituted by C 1 -C 4 alkyl and/or interrupted by one or more than one -O- or by -NH-; n is a number from 2 to 7; R 7 and R 8 independently of each other are hydrogen; C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, which is optionally interrupted by one or more than one O and/or substituted by one or more than one OH, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, wherein said C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl is optionally interrupted by one or more than one -O-; or R 7 and R 8 together with the nitrogen atom linking them form a -(CH 2) n - ring; Rg and R 10 form a -(CH 2) n - ring which is optionally substituted by C 1 -C 4 alkyl and/or interrupted by -O- or by -NH-; A is -O-; or-NH; R 11 is C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, which is optionally interrupted by one or more than one O; or C 1 -C 22 alkyl or C 2 -C 22 alkenyl which is substituted by C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, wherein said C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl is optionally interrupted by one or more than one -O-; with the proviso that at least one of R 1, R 2, and R 6 is substituted by hydroxy; if one of R 1 is hydroxyethyl, R 2 is not hydrogen, methyl or ethyl or hydroxyethyl; and if R 1 is hydrogen, R 2 is not 1-hydroxy-3-methyl-but-2-yl; if R 6 is substituted by one or more than one OH; one of R 1 and R 2 is C 4 -C 22 alkyl; or R 1 and R 2 together with the linking nitrogen form a piperidyl or morpholinyl radical; at least one of R 7 and R 8, or R 11 is interrupted by one or more than one -O-; and wherein the compounds are not embraced by formula or. R 1 and R 2 independently of each other are hydrogen; C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, which are optionally substituted by at least one hydroxy; or R 1 and R 2 together with the nitrogen atom linking them form a -(CH 2) n - ring which is optionally interrupted by -O- or by-NH-; R 3 is a -(C=O)OR 6 group; or a - NHR 6 group; R 6 is C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, which is optionally substituted by one or more than one OH; R 4 and R 5 are hydrogen; or R 4 and R 5 form a -(CH 2) n - ring which is optionally substituted by C 1 -C 4 alkyl and/or interrupted by one or more than one -O- or by -NH-; n is a number from 2 to 7; R 7 and R 8 independently of each other are hydrogen; C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, which is optionally interrupted by one or more than one O and/or substituted by one or more than one OH, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, wherein said C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl is optionally interrupted by one or more than one -O-; or R 7 and R 8 together with the nitrogen atom linking them form a -(CH 2) n - ring; Rg and R 10 form a -(CH 2) n - ring which is optionally substituted by C 1 -C 4 alkyl and/or interrupted by -O- or by -NH-; A is -O-; or-NH; R 11 is C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkinyl, C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, which is optionally interrupted by one or more than one O; or C 1 -C 22 alkyl or C 2 -C 22 alkenyl which is substituted by C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl, wherein said C 3 -C 22 cycloalkyl or C 3 -C 22 cycloalkenyl is optionally interrupted by one or more than one -O-; at least one of R 1, R 2, and R 6 is substituted by hydroxy; if one of R 1 is hydroxyethyl, R 2 is not hydrogen, methyl or ethyl or hydroxyethyl; and if R 1 is hydrogen, R 2 is not 1-hydroxy-3-methyl-but-2-yl; if R 6 is substituted by one or more than one OH; one of R 1 and R 2 is C 4 -C 22 alkyl; or R 1 and R 2 together with the linking nitrogen form a piperidyl or morpholinyl radical; at least one of R 7 and R 8, or R 11 is interrupted by one or more than one -O-;