in the cytotoxicity of these interesting depsipeptides. This effect can be almost compensated for by introduction of a second chlorine atom on the β-tyrosine moiety of the natural products. These simplified chondramides are much easier accessible than natural chondramides.
                                    从软骨酰胺的 ω-羟基酸中去除甲基和立体中心会导致这些有趣的缩肽的细胞毒性显着下降。这种影响几乎可以通过在
天然产物的 β-
酪氨酸部分引入第二个
氯原子来补偿。这些简化的软骨素比天然软骨素更容易获得。