Are there alternatives to tert-butyl (3R,4R)-4-amino-3-fluoropiperidine-1-carboxylate (CAS: 907544-16-5) in synthesis?

There are alternative reagents that can be used in place of tert-butyl (3R,4R)-4-amino-3-fluoropiperidine-1-carboxylate (CAS: 907544-16-5) depending on the specific synthetic route. For instance, (3R,4R)-4-amino-3-fluoropiperidine-1-carboxylic acid or its corresponding alkyl esters might be viable alternatives. The choice of alternative reagents depends on the desired product, reaction conditions, and the need to avoid certain toxic or hazardous materials. It is essential to evaluate each alternative for its effectiveness and safety in the context of the overall synthetic process.