The invention relates to enantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and processes for their preparation. The starting, intermediate and end products are as follows: ##STR1##
该发明涉及对映纯的2-氧-5,8-二
氮杂双环[4.3.0]
壬烷及其制备方法。起始物、中间体和终产物如下所示:##STR1##