The first enantioselective total synthesis of chondrosterins I and J was accomplished featuring a catalytic asymmetric intramolecular aldol reaction with chiral diamine catalyst. The enantiomeric excess was as high as 92 % ee .

中文翻译：

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手性二胺催化剂催化不对称分子内羟醛缩醛反应对映体全合成软骨素I和J

软骨素I和J的第一个对映选择性全合成是通过与手性二胺催化剂的催化不对称分子内醛醇缩合反应完成的。对映体过量高达92％ee。