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US 10,501,417 B2Granted
Synthesis of indazoles
AssigneeBayer Pharma Aktiengesellschaft
InventorsTobias Thaler, Johannes Platzek, Nicolas Guimond
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Abstract
The present invention relates to a novel method of preparing a 2-substituted indazole of structure: (I), to intermediate compounds, and to the use of intermediate compounds for the preparation of said 2-substituted indazole.
Claims22
A method of preparing a compound of formula (I):
- comprising
- reacting a compound of formula (V):
- with a vinyl sulfone compound of formula (IX′):
- wherein R is methyl, to provide the compound of formula (I).
1 more element
Dependencies are inferred from the claim text.