Construction of a Polyheterocyclic Benzopyran Library with Diverse Core Skeletons through Diversity-Oriented Synthesis Pathway
作者:Sangmi Oh、Hwan Jong Jang、Sung Kon Ko、Yeonjin Ko、Seung Bum Park
DOI:10.1021/cc100044w
日期:2010.7.12
In this study, a divergent and practical solid-phaseparallel diversity-oriented synthesis (DOS) strategy was successfully applied for the construction of five discrete coreskeletons embedded with privileged benzopyranyl substructure. The diversity of these coreskeletons was expanded through the introduction of various substituents at the R, R(1), and R(2) positions from a single key intermediate
Iron(III) Chloride/Phenylsilane‐Mediated Cascade Reaction of Allyl Alcohols with Maleimides: Synthesis of Poly‐Substituted γ‐Butyrolactones
作者:Hua Zhang、Xiao‐Yu Zhan、Xu‐Ling Chen、Lei Tang、Shuai He、Zhi‐Chuan Shi、Yu Wang、Ji‐Yu Wang
DOI:10.1002/adsc.201900843
日期:2019.11.5
A iron‐catalyzed free radical cascade reaction of allyl alcohols with N‐substituted maleimides for accessing poly‐substituted γ‐butyrolactones has been developed. In this protocol, various allyl alcohols can open N‐substituted maleimide rings to form allyl ester intermediates, and the allyl ester intermediates can be converted into an allyl ester alkyl radicals and undergo intramolecular free radical
target for many diseases, however, up to now, there is no AC2-selective agonist reported. In this research, docking-based virtual screening with the combination of cell-based biological assays have been performed for discovering novel potent and selective AC2 agonists. Virtual screening disclosed a novel hit compound 8 as an AC2 agonist with EC50 value of 8.10 μM on recombinant human hAC2 + HEK293 cells
Quinine-derived thiourea promoted enantioselective Michael addition reactions of 3-substituted phthalides to maleimides
作者:Jie Wang、Xin Li、Jin-Pei Cheng
DOI:10.1007/s11426-018-9393-2
日期:2019.5
A highly diastereoselective and enantioselective Michael addition/desymmetrization reaction of maleimides with prochiral 3- substituted phthalides catalyzed by quinine-derived bifunctional thiourea was realized. A broad range of the 3,3′-disubstituted phthalides bearing vicinal quaternary-tertiary stereogenic centers were synthesized in moderate to good yields (up to 96%) with high diastereoselectivities
Construction of Polyheterocyclic Benzopyran Library with Diverse Core Skeletons through Diversity-Oriented Synthesis Pathway: Part II
作者:Mingyan Zhu、Byung Joon Lim、Minseob Koh、Seung Bum Park
DOI:10.1021/co2001907
日期:2012.2.13
diversity-oriented synthesis of polyheterocyclic small-molecule library with privileged benzopyran substructure. To ensure the synthetic efficiency, we utilized the solid-phaseparallel platform and the fluorous-tag-based solution-phase parallel platform to construct a 284-member polyheterocyclic library with six distinct coreskeletons with an average purity of 87% on a scale of 5–10 mg. This library was designed