Synthesis of 1-Azabicyclo[3.3.0]octane Derivatives and Their Effects as Piracetam-like Nootropics.
作者:Mitsuru OKA、Yukiharu MATSUMOTO、Kiyotaka HIROOKA、Tomoo SUZUKI
DOI:10.1248/cpb.48.1121
日期:——
5-nitromethyl-1-azabicyclo[3.3.0]octane (1), was prepared in one step from 1,7-dichloro-4-heptanone (4) under mild conditions. Catalytic hydrogenation of 1 over Raney Ni in the presence of sodium hydroxide afforded 5-aminomethyl-1-azabicyclo[3.3.0]octane (2) in high yield. Piracetam analogues 20-23, which were pyrrolidine derivatives involving a 1-azabicyclo[3.3.0]octane ring, were synthesized. Pharmacological
在温和条件下,由1,7-二氯-4-庚酮(4)一步制备有用的药物中间体5-硝基甲基-1-氮杂双环[3.3.0]辛烷(1)。在氢氧化钠的存在下,在阮内镍上催化氢化1,以高收率得到5-氨基甲基-1-氮杂双环[3.3.0]辛烷(2)。合成了吡乙酰胺类似物20-23,其为涉及1-氮杂双环[3.3.0]辛烷环的吡咯烷衍生物。药理试验表明,N-[(1-氮杂双环[3.3.0]辛基-5-基)甲基] -2-氧代-1-吡咯烷乙酰胺e(20)可改善脑功能。