对所有共振谱线进行了全面归属，并讨论了不同取代基和环内不同杂原子对化学位移值的影响。

All of the resonance lines were fully assigned and the effects of substituents and heteroatoms in ring on chemical shifts were discussed.

youdao

对所有共振谱线进行了全面归属，并讨论了不同取代基和环内不同杂原子对化学位移值的影响。

All of the resonance lines were fully assigned and the effects of substituents and heteroatoms in ring on chemical shifts were discussed.

youdao