107504-08-5Relevant articles and documents
Improved Process for a Copper-Catalyzed C-N Coupling in the Synthesis of Verubecestat
Phillips, Eric M.,Reibarkh, Mikhail,Limanto, John,Kieu, Minh,Lekhal, Azzeddine,Zewge, Daniel
, p. 1674 - 1678 (2019)
Verubecestat is a β-site amyloid precursor protein cleaving enzyme 1 (BACE1) inhibitor which was previously evaluated for the treatment of Alzheimer's disease. The synthesis of verubecestat relies on a Cu-catalyzed carbon-nitrogen coupling. During process development, observations of impurity formation led to a more robust understanding of the catalyst. The transformation was discovered to be highly dependent on the ratio of ligand to substrate concentration during the course of the reaction. In-depth studies aimed at attaining mechanistic understanding provided an explanation of experimental findings and ultimately led to the identification of conditions that resulted in a more robust process.
HETEROCYCLIC DERIVATIVES OF PYRAZOL-4-YL-PYRROLO[2,3-D]PYRIMIDINES AS JANUS KINASE INHIBITORS
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Page/Page column 85; 86, (2011/04/14)
The present invention provides heterocyclic derivatives of pyrazol-4-yl-pyrrolo[2,3 djpyrimidines of Formula Ia or a pharmaceutically acceptable salt thereof; wherein: A is H, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-I4 cycloalkyl, C2-13 heterocycloalkyl, C6-14 aryl, C1-14 heteroaryl, C3-14 cycloalkyl-C1-4 alkyl, C2-13 heterocycloalkyl-C1-4 alkyl, C6-14 aryl-C1-4 alkyl, or C14 heteroaryl-C14 alkyl, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-14 cycloalkyl, C2-13 heterocycloalkyl, C6-14 aryl, C1-14 heteroaryl, C3-14 cycloalkyl-C1-4 alkyl, C2-13 heterocycloalkyl-C1-4 alkyl, C6-14 aryl-C1-4 alkyl, and C1-14 heteroaryl-C1-4 alkyl are each optionally substituted with I, 2, 3, 4, 5, or 6 independently selected R8 substituents; L is absent, C(=O), C(=O)NH, S(=O), or S(O)2; X is CH or N; Y is H, cyano, halo, C1-4 alkyl, or C1-4 haloalkyl; Z is CR7 or N; R1, R2, and R3 are each independently H, hydroxyl, halo, C1-3 alkyl, or C1-3 haloalkyl; R4 and R5 are each independently H, C1-3 alkyl, or C1-3 haloalkyl; or R4 and R5 together with the carbon atom to which they are attached can form a 3-, 4-, 5-, 6- υr 7-membered cycloalkyl ring; as well as their compositions and methods of use, that modulate the activity of Janus kinases (JAKs) and are useful in the treatment of diseases related to the activity of JAKs including, for example inflammatory disorders, autoimmune disorders, cancer, and other diseases.
FIVE-MEMBERED HETEROCYCLIC DERIVATIVE
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Page/Page column 58, (2010/11/08)
The present invention relates to a compound represented by formula (I): a salt of the compound, or a solvate of the compound or the salt; a drug containing any of the compounds, the salts, and the solvates; a preventive and/or therapeutic agent for an ischemic disease containing any of the compounds, the salts, and the solvates; and a platelet coagulation inhibitor containing any of the compounds, the salts, and the solvates. The compound of the present invention is useful as a strong platelet coagulation inhibitor without inhibiting COX-1 or COX-2.