How is 5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide (CAS: 1350653-27-8) typically synthesized?

5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide can be synthesized through a multi-step process involving alkylation and nucleophilic aromatic substitution reactions. Typically, this involves the reaction of 2-fluorobenzyl bromide with a 5-fluoropyrazolo[3,4-b]pyridine derivative. The synthesis usually requires the use of a phase-transfer catalyst and occurs with high selectivity, yielding a product with a purity of over 95%.