摘要
Mulberry Diels-Alder-type adducts(MDAAs)are unique phenolic natural products biosynthetically derived from the intermolecular[4+2]-cycloaddition of dienophiles(mainly chalcones)and dehydroprenylphenol dienes,which are exclusively distributed in moraceous plants.A total of 166 MDAAs with diverse skeletons have been isolated and identified since 1980.Structurally,the classic MDAAs characterized by the chalcone-skeleton dienophiles can be divided into eight groups(Types A−H),while others with non-chalcone dienophiles or some variations of classic MDAAs are non-classic MDAAs(Type I).These compounds have attracted significant attention of natural products and synthetic chemists due to their complex architectures,remarkable biological activities,and synthetic challenges.The present review provides a comprehensive summary of the structural properties,bioactivities,and syntheses of MDAAs.Cited references were collected between 1980 and 2021 from the SciFinder,Web of Science,and China National Knowledge Internet(CNKI).
基金
supported by the National Natural Science Foundation of China (Nos.81973203 and 81973195)
the Guangdong Basic and Applied Basic Research Foundation,China (No.2020A1515010841)
the Open Program of Shenzhen Bay Laboratory (No.SZBL2021080601007)
the Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) (No.SML2021SP301)
the Key-Area Research and Development Program of Guangdong Province,China (No.2020B1111110003).
