Aretannuin derivatives can be made by photo-oxygenation of a 2-oxabicyclo[4.4.0]dec-1,8a-ene compound using singlet oxygen, and reaction with a carbonyl compound R¹R²C=O to give a seco-desoxyarteannuin derivative (I) substituted with R¹ and R² at the 2-position.
通过使用单线态氧对 2-氧杂双环[4.4.0]癸-1,8a-烯化合物进行光氧化,并与羰基化合物 R¹R²C=O 反应,可得到在 2 位上被 R¹ 和 R² 取代的仲脱氧土荆皮衍
生物 (I),从而制成土荆皮衍
生物。