From Penicillin to Penem and Carbapenem. VIII. Introduction of an Allyl Group at the C-4 Position of the Azetidinone Molecule, and the Synthesis of Dethiathienamycin
作者:Katsumi Fujimoto、Yuji Iwano、Koichi Hirai
DOI:10.1246/bcsj.59.1363
日期:1986.5
A new C3-unit introduction reaction at the C-4 position of 4-acetoxy-2-azetidinone derivatives using tetraallyltin in the presence of 1/10 equiv of boron trifluoride etherate in dichloromethane is described. Dethiathienamycin was synthesized from (3S,4R)-4-allyl-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone via the ylide intermediate.
描述了在 4-乙酰氧基-2-氮杂环丁烷酮衍生物的 C-4 位置上的新 C3 单元引入反应,在二氯甲烷中 1/10 当量的三氟化硼醚合物存在下使用四烯丙基锡。Dethiathienamycin 由 (3S,4R)-4-allyl-3-[(R)-1-(t-丁基二甲基甲硅烷氧基)乙基]-2-azetidinone 通过叶立德中间体合成。