使用聚-γ-苄基-L-谷氨酸作为取向介质的残余化学位移各向异性的“单次”测量。
"One-Shot" Measurement of Residual Chemical Shift Anisotropy Using Poly-γ-benzyl-l-glutamate as an Alignment Medium.
机构信息
Department of Chemistry & Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28409, United States.
Analytical Research & Development, Merck & Company Inc., Rahway, New Jersey 07065, United States.
出版信息
Org Lett. 2020 Nov 20;22(22):8850-8854. doi: 10.1021/acs.orglett.0c03225. Epub 2020 Nov 3.
A method for the measurement of residual chemical shift anisotropy in one experiment using a biphasic isotropic/anisotropic lyotropic liquid crystalline medium based on poly-γ-benzyl-l-glutamate as the alignment medium is presented. This approach is demonstrated on the model compound strychnine and neotricone, a depsidone natural product with a questionable structural assignment based on comparison with the closely related excelsione and in-depth density functional theory calculations.
本文提出了一种在基于聚-γ-苄基-L-谷氨酸的双相各向同性/各向异性溶致液晶介质中，通过一个实验测量剩余化学位移各向异性的方法。该方法在模型化合物士的宁和新三萜酮（一种基于与密切相关的 excelsione 的结构比较和深入的密度泛函理论计算，结构归属存在疑问的去甲二萜酮天然产物）上得到了验证。
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