【摘要】 对拉呋替丁的氢谱(1HNMR)、碳谱(13CNMR,DEPT)、异核多键相关谱(HMBC)予以解析并进行了报道,对其所有的1HNMR和13CNMR谱信号进行了归属;讨论了红外特征吸收,热差和热重分析;质谱的裂解途径和离子特征也与拉呋替丁的分子结构相符.更多还原

【Abstract】 Mass spectrum and one-dimensional (1H and 13 C ) and two-dimensional (heteronuclear multiple-bond coherence, HMBC) NMR spectra of lafutidine were reported and interpreted. The 1H and 13 C chemical shifts were assigned. The spectroscopic characteristics of the compound were discussed in detail and found to be consistent with its structure known previously.更多还原