Addition of lithiated methoxyallene to aziridine derivatives provided the expected primary addition products. The less substituted carbon of the aziridine ring was attacked selectively. The primary adducts could be converted to enantiopure piperidine derivatives or β-amino acid derivatives. The unexpected reactions lead to a tricyclic sulfonamide and to alkynyl-substituted aminoethers. The efficient two-step conversion of a piperidone derivative to a benzomorphan demonstrates the potential of this approach to biologically active compounds.
对
亚胺衍
生物的甲氧基
丙炔锂加成反应产生了预期的主要加成产物。
亚胺环的较少取代的碳原子被选择性地攻击。主要加合物可以转化为对映纯的
哌啶衍
生物或β-
氨基酸衍
生物。意外的反应导致
三环磺酰胺和烷基取代的
氨基醚。将
哌啶酮衍
生物有效地转化为苯
吗啡表明了这种方法对
生物活性化合物的潜力。