盐酸四环素中可交换氢和氢键的核磁共振波谱研究
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谢金华 1,王乐 1,*( ),刘盼 1,苏稀琪 1,MINGLi-June 2,3
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An NMR Spectroscopy Study on the Exchangeable Protons and Hydrogen Bonds in Tetracycline Hydrochloride
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Jin-hua XIE 1,Le WANG 1,*( ),Pan LIU 1,Xi-qi SU 1,Li-June MING 2,3
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图4. 1H-13C HMBC谱图(DMSO-d6,脉冲延迟时间为1.5 s,*表示没有被完全抑制的C-H耦合以双卫星峰出现)
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Fig.4. 1H-13C HMBC spectrum of tetracycline hydrochloride in DMSO-d6 with a pulse-delay time of 1.5 s to emphasize medium-strong coupling. * indicates that the strong C-H coupling doublets are not fully suppressed
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