Abstract A series of N -(8-alkyl (or aralkyl) nortropan-3-β-yl)-3,4,5-trimethoxybenzamides have been synthesized and their molecular structures determined by 1 H-NMR and 13 C-NMR methods. The pyrrolidine and piperidine rings adopt a flattened N8 envelope and a slightly distorted chair conformation puckered at N8, with the N -substituent and the amido group at C3 position in the axial and equatorial
摘要 合成了一系列N-(8-烷基(或芳烷基)nortropan-3-β-yl)-3,4,5-三
甲氧基苯甲酰胺,并通过 1 H-NMR 和 13 C-NMR 方法确定了其分子结构。
吡咯烷和
哌啶环采用扁平的 N8 包膜和略微扭曲的椅子构象,在 N8 处起皱,相对于
哌啶环,N-取代基和 C3 位置的酰胺基分别位于轴向和赤道位置。