puromycin were prepared from an acylnitroso-derived hetero Diels–Alder cycloadduct. Pd(0)/InI-mediated allylations of a formyl species were used to install the 4′-hydroxymethyl group. A tethered aminohydroxylation strategy was employed to install the cis-2′,3′-aminoalcohol moiety with complete regio- and diastereocontrol.
碳环
氨基核苷和epi -4'-碳环
嘌呤霉素由酰基亚硝基衍生的杂Diels-Alder环加合物制备。Pd(0)/InI 介导的甲酰基烯丙基化被用于安装 4'-羟甲基。采用束缚
氨基羟基化策略来安装具有完全区域和非对映控制的顺式-2',3'-
氨基醇部分。