The present invention provides a most suitable prodrug of a cinnamide compound. The prodrug is represented by Formula (I)
wherein R
a
and R
b
each denote a C1-6 alkyl group or the like; X
a
denotes a methoxy group or a fluorine atom; Y denotes a phosphono group or the like; and A denotes a cyclic lactam derivative.
本发明提供了一种桂皮酰胺化合物的最适宜的前药。该前药由式(I)表示,其中R
a
和R
b
分别表示C1-6烷基或类似物;X
a
表示甲氧基或氟原子;Y表示磷酸酯基团或类似物;A表示环内酰胺衍生物。
Enantio‐ and Diastereodivergent Synthesis of Spirocycles through Dual‐Metal‐Catalyzed [3+2] Annulation of 2‐Vinyloxiranes with Nucleophilic Dipoles
A dual-metal-catalyzed asymmetric [3+2] annulation of 2-vinyloxiranes with the challenging nucleophilic dipoles (imino esters) was achieved. It was successfully applied to the stereodivergent synthesis of structurally rigid spirocyclic framework. A series of spirocompounds bearing a pyrroline and an olefin were synthesized in an enantio- and diastereodivergent manner.
We report a stereodivergent Pd/Cu catalyst system that was successfully applied to the asymmetric allylic alkylation of symmetrical 1,3-disubstituted allyl acetates with prochiral imino esters, providing efficient access to enantiopure products bearing vicinal stereocenters in a fully stereodivergent manner. The protocol proceeds smoothly under mild reaction conditions and can accommodate a range of
Enantio- and Diastereoselective Copper-Catalyzed Synthesis of Chiral Aziridines with Vicinal Tetrasubstituted Stereocenters
作者:Fang Xie、Jie Zhao、Deyue Ren、Jianming Xue、Jingyi Wang、Qin Zhao、Lu Liu、Xiaodan Liu
DOI:10.1021/acs.orglett.3c03565
日期:2023.12.1
mild conditions. This novel protocol features a broad substrate scope and good functional group compatibility, and it enriches the existing reaction type of rapid synthesis of optically active aziridines bearing vicinaltetrasubstituted stereogenic carbon centers.
Disclosed is an optimal prodrug of a cinnamide compound represented by Formula (I) below.
In the formula, Ra and Rb respectively represent a C1-6 alkyl group or the like; Xa represents a methoxy group or a fluorine atom; Y represents a phosphono group or the like; and A represents a cyclic lactam derivative.