Mulberry Diels–Alder-type adducts: isolation, structure, bioactivity, and synthesis

doi:10.1007/s13659-022-00355-y

Abstract

Abstract: 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).

Key words: Mulberry Diels–Alder-type adducts, MDAAs, Natural products, Bioactivity, Synthesis

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).

关键词: Mulberry Diels–Alder-type adducts, MDAAs, Natural products, Bioactivity, Synthesis

Si-Yuan Luo, Jun-Yu Zhu, Ming-Feng Zou, Sheng Yin, Gui-Hua Tang. Mulberry Diels–Alder-type adducts: isolation, structure, bioactivity, and synthesis[J]. Natural Products and Bioprospecting, 2022, 12(5): 31-31.

Si-Yuan Luo, Jun-Yu Zhu, Ming-Feng Zou, Sheng Yin, Gui-Hua Tang. Mulberry Diels–Alder-type adducts: isolation, structure, bioactivity, and synthesis[J]. 应用天然产物, 2022, 12(5): 31-31.

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