The configurations and preferred conformations of some substituted octahydropyrido[1,2-c]1,3-oxazines have been deduced on the basis of NMR spectra and the 2700–2850 cm−1 region of the IR spectra. The configurations of (±) sedridin and (±) sedamin have been confirmed. The importance of dipole interactions in determining the preferred conformations of this system have been illustrated.
一些取代的八氢
吡啶并[1,2-c] 1,3-恶嗪的构型和优选构象是根据NMR光谱和IR光谱的2700-2850 cm -1区域推导的。(±)sedridin和(±)sedamin的构型已得到确认。已经说明了偶极相互作用在确定该系统的优选构象中的重要性。