Total Synthesis of (+)-Batzelladine A and (−)-Batzelladine D via [4 + 2]-Annulation of Vinyl Carbodiimides with <i>N</i>-Alkyl Imines
作者:Michael A. Arnold、Kenneth A. Day、Sergio G. Durón、David Y. Gin
DOI:10.1021/ja063860+
日期:2006.10.1
this strategy, together with additional key steps such as long-range directed hydrogenation and diastereoselective intramolecular iodo-amination, led to highly convergent total syntheses of (-)-batzelladineD and (+)-batzelladine A with excellent stereocontrol.
已经开发出乙烯基碳二亚胺与手性 N-烷基亚胺的非对映选择性 [4 + 2]-环化,以获取 batzelladine 生物碱的立体化学丰富的多环胍核。该策略的应用,连同其他关键步骤,如远程定向氢化和非对映选择性分子内碘胺化,导致 (-)-batzelladine D 和 (+)-batzelladine A 的高度收敛全合成具有出色的立体控制。
5-HT<sub>7</sub>Receptor Antagonists with an Unprecedented Selectivity Profile
Selective leads: In this study, we generated a new series of serotonin 5‐HT7 receptorantagonists. Their synthesis, structure–activity relationships, and selectivity profiles are reported. This series includes 5‐HT7 antagonists with unprecedented high selectivity for the 5‐HT7 receptor, setting the stage for lead optimization of drugs acting on a range of neurological targets.
Highly diastereoselective alkylation of chiral tin(II) enolates onto cyclic acyl imines. An efficient asymmetric synthesis of bicyclic alkaloids bearing a nitrogen atom ring juncture
作者:Yoshimitsu Nagao、Wei Min Dai、Masahito Ochiai、Shigeru Tsukagoshi、Eiichi Fujita
DOI:10.1021/jo00291a012
日期:1990.2
NAGAO, YOSHIMITSU;DAI, WEI-MIN;OCHIAI, MASAHITO;TSUKAGOSHI, SHIGERU;FUJIT+, J. ORG. CHEM., 55,(1990) N, C. 1148-1156