1616064-77-7Relevant articles and documents
A Flow Process Built upon a Batch Foundation - Preparation of a Key Amino Alcohol Intermediate via Multistage Continuous Synthesis
Lim, John Jin,Arrington, Kenneth,Dunn, Anna L.,Leitch, David C.,Andrews, Ian,Curtis, Neil R.,Hughes, Mark J.,Tray, Daniel R.,Wade, Charles E.,Whiting, Matthew P.,Goss, Charles,Liu, Yangmu Chloe,Roesch, Brian M.
, p. 1927 - 1937 (2020)
This paper describes recent efforts to apply flow technology in the preparation of the key amino alcohol intermediate 3b so as to address manufacturability issues present in the batch process of a PRMT5 inhibitor. The continuous process, one of the first reported pharmaceutical processes to use aqueous NH4OH in flow, eliminates an isolation and the use of dichloromethane in the workup and improves reaction time >140-fold compared with the batch process to deliver multigram quantities of 3b in 60-65% isolated yield with >99 HPLC area % and >99% ee. While the flow process greatly increases the efficiency compared with the batch process, small-scale batch experiments were crucial in gaining reaction understanding to increase the kinetics and minimize impurity formation. The holistic process design underscores our belief that large-scale flow processes are built upon the knowledge gained through well-chosen small-scale batch experiments.
HETEROCYCLIC COMPOUNDS AS PRMT5 INHIBITORS
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Paragraph 000144, (2019/06/11)
The compounds of Formula I, Formula Ia, and Formula Ib are described herein along with their analogs, tautomeric forms, stereoisomers, polymorphs, hydrates, solvates, pharmaceutically acceptable salts, pharmaceutical compositions, metabolites, and prodrugs thereof. These compounds inhibit PRMT5 and are useful as therpeautic or ameliorating agent for diseases that are involved in cellular growth such as malignant tumors, schizophrenia, Alzheimer's disease, Parkinson's disease and the like.
SUBSTITUTED IMIDAZOLIDIN-2-ONE DERIVATIVES AS PRMT5 INHIBITORS
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Page/Page column 44, (2019/10/15)
The present invention relates to substituted imidazolidin-2-one derivatives of formula (I) or pharmaceutically acceptable salts thereof. The present invention further provides the methods of preparation of compound of formula (I) and utility as PRMT5 inhibitors. The compounds are useful as medicaments in the treatment of conditions and disorders mediated by PRMT5, such as cancer, metabolic disorders, inflammation, autoimmune disease and hemoglobinopathies.