A Single Quadrupole Compact Mass Spectrometer Enabling Early Stage Synthetic Optimization of Verubecestat (MK-8931)
2019
A low-cost compact mass spectrometer was effectively utilized for identifying and tracking process impurities in the early stage development of a multi-step synthetic protocol used to prepare the verubecestat drug substance. Process optimizations were influenced by the type, quantity, and final fate of impurities generated during synthesis. Employing a compact mass spectrometer for impurity identification and tracking served as a guide to redesign synthetic strategies, which enabled the minimization or avoidance of undesired side products.
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