New sugar based γ-amino silyl ether organocatalysts were synthesized and their catalytic ability was examined in asymmetric Michael addition of β-keto esters with nitroolefins affording chiral Michael adducts with quaternary carbon stereocenter in good to excellent chemical yields, diastereoselectivities and moderate enantioselectivities (up to 97%, up to dr. 85:15, up to 56% ee).

中文翻译：

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新型糖基γ-氨基甲硅烷基醚有机催化剂用于β-酮酯与硝基烯烃的不对称迈克尔加成

合成了新的基于糖的 γ-氨基甲硅烷基醚有机催化剂，并在 β-酮酯与硝基烯烃的不对称迈克尔加成中检测了它们的催化能力，从而得到具有季碳立体中心的手性迈克尔加合物，具有良好至优异的化学收率、非对映选择性和中等对映选择性（高达97%，高达85:15博士，高达 56% ee )。