Synthesis of the orally active spiroindoline-based growth hormone secretagogue, MK-677
作者:Peter E. Maligres、Ioannis Houpis、Kai Rossen、Audrey Molina、Jess Sager、Veena Upadhyay、Kenneth M. Wells、Robert A. Reamer、Joseph E. Lynch、David Askin、R.P. Volante、Paul J. Reider、Peter Houghton
DOI:10.1016/s0040-4020(97)00359-1
日期:1997.8
The preparation of the Merck GrowthHormoneSecretagogue; MK-677 is described. A Fischer indole/reduction based strategy provides the novel spiroindoline nucleus of this potent compound. This optimized sequence necessitates the isolation of only one intermediate 10 and provides MK-677 in 48% overall yield from isonipecotic acid 3.
serve as imine moiety for formal aza‐Dield‐Alder reactions with electron rich dienes. The reaction delivers tetrahydropyrido[1,2‐a]spiroindolinones as an interesting class of rigid tridimensional polyheterocycles for drug discovery processes. Manipulation of the synthesized compounds encompasses transformation of the functional groups and formation of new carbon–carbon bonds.
螺旋吲哚胺充当亚胺部分,与富电子二烯进行正式的氮杂-狄德-阿德耳反应。该反应将四氢吡啶并[1,2- a ]螺吲哚酮作为一类有趣的刚性三维多杂环化合物用于药物开发过程。合成化合物的操作包括官能团的转化和新的碳-碳键的形成。