| 摘要 |
The invention relates to a chiral compound of general formula (I), wherein the groups R are the same or different but preferentially the same and are aliphatic C1-10 groups or optionally substituted aromatic groups or that both groups R together with the C-atoms marked with * form a carbocyclic or heterocyclic or anellated ring system (with 3-10, preferably 5-8 ring members) of the formula (II): (CR'R")n-, wherein R' and R'' are the same or different and are hydrogen atoms, aliphatic C1-10 groups, optionally substituted aromatic groups or optionally substituted hetero aromatic groups or anellated groups, and n is an integer from 1-10, and R1 is a group of general formula (III, IV or V), wherein R4, R5 or R6 are aliphatic C1-18 groups or optionally substituted aromatic groups or optionally substituted hetero aromatic groups or methyl-aryl groups, the preparation of such compounds as well as their use. |
