| 摘要 |
Novel compounds of general formula (I) wherein R1-R7 denote, in particular, a straight or branched hydrocarbon radical comprising 1-6 carbon atoms, Z is a straight or branched hydroxycarbon radical comprising 2-6 carbon atoms, a triple bond, a Z or E stereochemistry double bond (Z'CH=CHZ") in which Z' and Z", which are the same or different, are a hydrogen atom, a fluorine atom or a straight or branched hydrocarbon radical comprising 1-6 carbon atoms; n=0.1 or 2; X and X', which are the same or different, are O or NR'1, where R'1 is a hydrogen atom, a straight or branched hydroxycarbon radical comprising 1-5 carbon atoms, or a cycloalkyl radical comprising 3-7 carbon atoms; and Y = O,S. |
