Are there alternatives to (3S)-pyrrolidin-3-amine; dihydrochloride in synthesis?

Alternative reagents to (3S)-pyrrolidin-3-amine; dihydrochloride include other amines such as (2S)-pyrrolidin-2-amine and (3R)-pyrrolidin-3-amine. These can serve as viable substitutes depending on the specific chemical reaction and desired product purity. Isomers and analogs may also be used based on the research requirements and availability.