Synthesis of Substituted 1H-Pyrazolo[3,4-D]Pyrimidines

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United States of America Patent

SERIAL NO

15523067

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The present invention refers to the synthesis and intermediates of substituted bicyclic compounds by using a central 1H-pyrazolo[3,4-d]pyrimidine of formula (I), which is assembled starting from 4,6-dichloropyrimidine carboxylic acid. The invention in particular refers to the synthesis of the Bruton's tyrosine kinase (Btk) inhibitor 1-((R)-3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)prop-2-en-1-one(ibrutinib) and its synthesis intermediates.

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SANDOZ AGCENTRALBAHNSTRASSE 4 4051 BASEL 4051

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Felzmann, Wolfgang Kundl, AT 8 7
Maras, Nenad Kundl, AT 5 8
Rose, Christopher Kundl, AT 22 101
Schreiner, Erwin Kundl, AT 9 5
Silberger, Herbert Kundl, AT 1 1

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