采用微束电子衍射手性盐形成法测定药物结晶粉末的绝对构型。
Absolute configuration determination of pharmaceutical crystalline powders by MicroED chiral salt formation.
机构信息
Small Molecule Drug Product Development, Biogen, 115 Broadway, Cambridge, MA 02142, USA.
NanoImaging Services, 4940 Carroll Canyon Road, San Diego, CA 92121, USA.
出版信息
Chem Commun (Camb). 2022 Apr 12;58(30):4711-4714. doi: 10.1039/d2cc00221c.
Microcrystal electron diffraction (MicroED) has established its complementary role alongside X-ray diffraction in crystal structure elucidation. Unfortunately, kinematical refinement of MicroED data lacks the differentiation power to assign the absolute structure solely based on the measured intensities. Here we report a method for absolute configuration determination MicroED by employing salt formation with chiral counterions.
微晶体电子衍射（MicroED）已经在晶体结构解析中确立了其与 X 射线衍射相辅相成的地位。不幸的是，基于动力学的 MicroED 数据精修缺乏区分能力，仅根据测量强度无法确定绝对结构。在这里，我们报告了一种通过与手性抗衡离子形成盐来确定 MicroED 绝对构型的方法。
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