盐酸四环素中可交换氢和氢键的核磁共振波谱研究
谢金华1,王乐1,*(
),刘盼1,苏稀琪1,MINGLi-June2,3
),刘盼1,苏稀琪1,MINGLi-June2,3
An NMR Spectroscopy Study on the Exchangeable Protons and Hydrogen Bonds in Tetracycline Hydrochloride
Jin-hua XIE1,Le WANG1,*(),Pan LIU1,Xi-qi SU1,Li-June MING2,3
),Pan LIU1,Xi-qi SU1,Li-June MING2,3
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）
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
