1) bicyclic fused
稠合双环
2) nantiopure bicyclic fused aziridines
稠合双环氮杂环丙烷
1.
Novel enantiopure bicyclic fused aziridines can be obtained in good yield by Michael addition followed with internal nucleophilic substitution of(5R)-5-L-menthoxy-3-bromo-2(5H)-furanone and primary amines conveniently.
利用5-(R)-(L)-孟氧基-3-溴-2(5H)-呋喃酮和伯胺发生串联的Michael加成和分子内亲核取代反应,可以十分方便地得到光学纯的稠合双环氮杂环丙烷衍生物。
3) fused exocyclic rings
稠合外环
5) fused polycyclic system
稠合多环系
6) fused six-membered rings
稠合六元环
补充资料：稠掩掩
1.密集而隐约无光。
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